Frequency hopping enabling for an uplink control channel transmission by a user equipment

ABSTRACT

An apparatus for wireless communication includes a transmitter configured to communicate with a base station based on a first uplink bandwidth part (BWP) that includes a first frequency subset and that further includes a second frequency subset. The apparatus further includes a receiver configured to receive, from the base station, one or more messages including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled. The transmitter is further configured to transmit, to the base station, an uplink control channel transmission using both the first frequency subset and the second frequency subset based on the frequency hopping indicator specifying that the frequency hopping mode is enabled or using one of the first frequency subset or the second frequency subset based on the frequency hopping indicator specifying that the frequency hopping mode is disabled.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of and claims the benefit of U.S.patent application Ser. No. 17/651,366, entitled, “FREQUENCY HOPPINGENABLING FOR AN UPLINK CONTROL CHANNEL TRANSMISSION BY A USEREQUIPMENT,” filed Feb. 16, 2022, and also claims the benefit of U.S.Provisional Patent Application No. 63/260,038, entitled, “FREQUENCYHOPPING ENABLING FOR AN UPLINK CONTROL CHANNEL TRANSMISSION BY A USEREQUIPMENT,” filed on Aug. 6, 2021, both of which are expresslyincorporated by reference herein in their entirety.

TECHNICAL FIELD

Aspects of the present disclosure relate generally to wirelesscommunication systems, and more particularly, to communication systemsthat use frequency hopping for wireless transmissions.

INTRODUCTION

Wireless communication networks are widely deployed to provide variouscommunication services such as voice, video, packet data, messaging,broadcast, and the like. These wireless networks may be multiple-accessnetworks capable of supporting multiple users by sharing the availablenetwork resources. Such networks may be multiple access networks thatsupport communications for multiple users by sharing the availablenetwork resources.

A wireless communication network may include several components. Thesecomponents may include wireless communication devices, such as basestations (or node Bs) that may support communication for a number ofuser equipments (UEs). A UE may communicate with a base station viadownlink and uplink. The downlink (or forward link) refers to thecommunication link from the base station to the UE, and the uplink (orreverse link) refers to the communication link from the UE to the basestation.

A base station may transmit data and control information on a downlinkto a UE or may receive data and control information on an uplink fromthe UE. On the downlink, a transmission from the base station mayencounter interference due to transmissions from neighbor base stationsor from other wireless radio frequency (RF) transmitters. On the uplink,a transmission from the UE may encounter interference from uplinktransmissions of other UEs communicating with the neighbor base stationsor from other wireless RF transmitters. This interference may degradeperformance on both the downlink and uplink.

As the demand for mobile broadband access continues to increase, thepossibilities of interference and congested networks grows with more UEsaccessing the long-range wireless communication networks and moreshort-range wireless systems being deployed in communities. Research anddevelopment continue to advance wireless technologies not only to meetthe growing demand for mobile broadband access, but to advance andenhance the user experience with mobile communications.

BRIEF SUMMARY OF SOME EXAMPLES

In some aspects of the disclosure, an apparatus for wirelesscommunication includes a transmitter configured to communicate with abase station based on a first uplink bandwidth part (BWP) that includesa first frequency subset and that further includes a second frequencysubset. The apparatus further includes a receiver configured to receive,from the base station, one or more messages including a frequencyhopping indicator that specifies whether a frequency hopping mode isenabled or disabled. The transmitter is further configured to transmit,to the base station, an uplink control channel transmission using boththe first frequency subset and the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis enabled or using one of the first frequency subset or the secondfrequency subset based on the frequency hopping indicator specifyingthat the frequency hopping mode is disabled.

In some other aspects, an apparatus for wireless communication includesa receiver configured to receive, from a base station, a firstindication of a bandwidth associated with the base station and furtherconfigured to receive, from the base station, a second indication of afirst uplink BWP. The first uplink BWP includes a first frequency subsetand that further includes a second frequency subset. The apparatusfurther includes a transmitter configured to transmit, to the basestation, an uplink signal transmission using both the first frequencysubset and the second frequency subset based on the first uplink BWPexceeding a threshold that is based at least in part on the bandwidthassociated with the base station or using one of the first frequencysubset or the second frequency subset based on the first uplink BWPfailing to exceed the threshold.

In some other aspects, a method of wireless communication performed by aUE includes receiving, from a base station, one or more messagesincluding a frequency hopping indicator that specifies whether afrequency hopping mode is enabled or disabled for the UE. The UE isassociated with a first uplink BWP that includes a first frequencysubset and a second frequency subset. The method further includestransmitting, to the base station, an uplink control channeltransmission using both the first frequency subset and the secondfrequency subset based on the frequency hopping indicator specifyingthat the frequency hopping mode is enabled or using one of the firstfrequency subset or the second frequency subset based on the frequencyhopping indicator specifying that the frequency hopping mode isdisabled.

In some other aspects, a method of wireless communication performed by aUE includes receiving, from a base station, a first indication of abandwidth associated with the base station and further includesreceiving, from the base station, a second indication of a first uplinkBWP. The first uplink BWP includes a first frequency subset and thatfurther includes a second frequency subset. The method includestransmitting, to the base station, an uplink signal transmission usingboth the first frequency subset and the second frequency subset based onthe first uplink BWP exceeding a threshold that is based at least inpart on the bandwidth associated with the base station or using one ofthe first frequency subset or the second frequency subset based on thefirst uplink BWP failing to exceed the threshold.

In some other aspects, an apparatus for wireless communication includesa receiver configured to communicate with a UE based on a first uplinkBWP associated with the UE. The first uplink BWP includes a firstfrequency subset and further includes a second frequency subset. Theapparatus further includes a transmitter configured to transmit, to theUE, one or more messages including a frequency hopping indicator thatspecifies whether a frequency hopping mode is enabled or disabled. Thereceiver is further configured to receive, from the UE, an uplinkcontrol channel transmission using both the first frequency subset andthe second frequency subset based on the frequency hopping indicatorspecifying that the frequency hopping mode is enabled or using one ofthe first frequency subset or the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis disabled.

In some other aspects, an apparatus for wireless communication includesa transmitter configured to transmit, to a UE, a first indication of abandwidth associated with a base station and further configured totransmit, to the UE, a second indication of a first uplink BWP. Thefirst uplink BWP includes a first frequency subset and that furtherincludes a second frequency subset. The apparatus further includes areceiver configured to receive, from the UE, an uplink signaltransmission using both the first frequency subset and the secondfrequency subset based on the first uplink BWP exceeding a thresholdthat is based at least in part on the bandwidth associated with the basestation or using one of the first frequency subset or the secondfrequency subset based on the first uplink BWP failing to exceed thethreshold.

In some other aspects, a method of wireless communication performed by abase station includes transmitting, to a UE, one or more messagesincluding a frequency hopping indicator that specifies whether afrequency hopping mode is enabled or disabled for the UE. The UE isassociated with a first uplink BWP that includes a first frequencysubset and a second frequency subset. The method further includesreceiving, from the UE, an uplink control channel transmission usingboth the first frequency subset and the second frequency subset based onthe frequency hopping indicator specifying that the frequency hoppingmode is enabled or using one of the first frequency subset or the secondfrequency subset based on the frequency hopping indicator specifyingthat the frequency hopping mode is disabled.

In some other aspects, a method of wireless communication performed by abase station includes transmitting, to a UE, a first indication of abandwidth associated with the base station and further includestransmitting, to the UE, a second indication of a first uplink BWP. Thefirst uplink BWP includes a first frequency subset and that furtherincludes a second frequency subset. The method further includesreceiving, from the UE, an uplink signal transmission using both thefirst frequency subset and the second frequency subset based on thefirst uplink BWP exceeding a threshold that is based at least in part onthe bandwidth associated with the base station or using one of the firstfrequency subset or the second frequency subset based on the firstuplink BWP failing to exceed the threshold.

While aspects and implementations are described in this application byillustration to some examples, those skilled in the art will understandthat additional implementations and use cases may come about in manydifferent arrangements and scenarios. Innovations described herein maybe implemented across many differing platform types, devices, systems,shapes, sizes, packaging arrangements. For example, aspects and/or usesmay come about via integrated chip implementations and othernon-module-component based devices (e.g., end-user devices, vehicles,communication devices, computing devices, industrial equipment,retail/purchasing devices, medical devices, artificial intelligence(AI)-enabled devices, etc.). While some examples may or may not bespecifically directed to use cases or applications, a wide assortment ofapplicability of described innovations may occur. Implementations mayrange in spectrum from chip-level or modular components to non-modular,non-chip-level implementations and further to aggregate, distributed, ororiginal equipment manufacturer (OEM) devices or systems incorporatingone or more aspects of the described innovations. In some practicalsettings, devices incorporating described aspects and features may alsonecessarily include additional components and features forimplementation and practice of claimed and described aspects. Forexample, transmission and reception of wireless signals necessarilyincludes a number of components for analog and digital purposes (e.g.,hardware components including antenna, radio frequency (RF)-chains,power amplifiers, modulators, buffer, processor(s), interleaver,adders/summers, etc.). It is intended that innovations described hereinmay be practiced in a wide variety of devices, chip-level components,systems, distributed arrangements, end-user devices, etc. of varyingsizes, shapes, and constitution.

BRIEF DESCRIPTION OF THE DRAWINGS

A further understanding of the nature and advantages of the disclosuremay be realized by reference to the following drawings. In the drawings,similar components or features may have the same reference label.Further, various components of the same type may be distinguished byfollowing the reference label by a dash and a second label thatdistinguishes among the similar components. If just the first referencelabel is used in the specification, the description is applicable to anyone of the similar components having the same first reference labelirrespective of the second reference label.

FIG. 1 is a block diagram illustrating details of an example wirelesscommunication system according to some aspects of the disclosure.

FIG. 2 is a block diagram illustrating examples of a base station and auser equipment (UE) according to some aspects of the disclosure.

FIG. 3 is a block diagram illustrating an example of a wirelesscommunication system according to some aspects of the disclosure.

FIG. 4 is a diagram illustrating an example of a resource allocationscheme according to some aspects of the disclosure.

FIG. 5 is a diagram illustrating examples of the first uplink bandwidthpart (BWP), a second uplink BWP, and a third uplink BWP according tosome aspects of the disclosure.

FIG. 6 is a diagram illustrating additional examples of the first uplinkBWP, the second uplink BWP, and the third uplink BWP according to someaspects of the disclosure.

FIG. 7 is a block diagram illustrating another example of a wirelesscommunication system according to some aspects of the disclosure.

FIG. 8 is a flow diagram illustrating an example of a method of wirelesscommunication performed by a UE according to some aspects of thedisclosure.

FIG. 9 is a flow diagram illustrating an example of a method of wirelesscommunication performed by a base station according to some aspects ofthe disclosure.

FIG. 10 is a flow diagram illustrating another example of a method ofwireless communication performed by a UE according to some aspects ofthe disclosure.

FIG. 11 is a flow diagram illustrating an example of a method ofwireless communication performed by a base station according to someaspects of the disclosure.

FIG. 12 is a block diagram illustrating an example of a UE according tosome aspects of the disclosure.

FIG. 13 is a block diagram illustrating an example of a base stationaccording to some aspects of the disclosure.

Like reference numbers and designations in the various drawings indicatelike elements.

DETAILED DESCRIPTION

Wireless communication systems increasingly support different types ofdevices with different capabilities. For example, a wirelesscommunication system may include one or more user equipments (UEs) of afirst capability type and may further include one or more UEs of asecond capability type that is different than the first capability type.In some implementations, first capability type may correspond to a“reduced capability” (RedCap) capability type. In some implementations,a RedCap device may enable reduced cost, reduced device size, or reducedpower consumption. The second capability type may correspond to anon-RedCap capability type, such as an embedded mobile broadband (eMBB)capability type, an ultra-reliable low-latency communication (URLLC)capability type, or another capability type.

In some circumstances, a UE of one capability type may introduce noiseor interference to another UE of another capability type. As anillustrative example, a RedCap UE may transmit signals using frequencieswithin a first uplink bandwidth part (BWP) that is associated with theRedCap UE. In some cases, the first uplink BWP may overlap (e.g., may bea subset of) a second uplink BWP associated with another UE, such as anon-RedCap UE. As a result, the frequencies used by the RedCap UE may beunavailable to the non-RedCap UE.

In some examples, the second uplink BWP of the non-RedCap may experienceresource fragmentation due to the use of the frequencies by the RedCapUE. For example, if the frequencies used by the RedCap UE include twofrequency subsets of the second uplink BWP, then the second uplink BWPmay be fragmented into three non-contiguous frequency regions. In someimplementations, a transmission by the RedCap UE using the threenon-contiguous frequency regions may involve three different packets(e.g., instead of a single packet that may be transmitted using asingle, contiguous, non-fragmented frequency region). As a result,latency associated with the non-RedCap UE may be increased, which may beundesirable in some applications (such as in the case of some eMBB orURLLC applications).

In some aspects of the disclosure, a UE may selectively enable ordisable frequency hopping for an uplink control channel transmission. Insome circumstances, disabling frequency hopping may reduce or avoidresource fragmentation for a second UE. For example, if frequencyhopping is disabled, the uplink control channel transmission may use onefrequency subset of a first uplink BWP associated with the UE instead ofusing multiple frequency subsets of the first uplink BWP. As a result,in some examples, resource fragmentation of a second uplink BWPassociated with the second UE may be reduced. In some implementations,the frequency subset may be aligned with a frequency boundary of thesecond uplink BWP to further reduce or avoid resource fragmentation ofthe second uplink BWP.

Depending on the particular example, enabling or disabling of frequencyhopping may be performed using an explicit technique or an implicittechnique. In an example of an explicit technique, a base station maytransmit a frequency hopping indicator that specifies whether frequencyhopping is enabled or disabled for the UE. In some implementations, thebase station may transmit the frequency hopping indicator based on acapability type of the UE (e.g., an indication that the UE is associatedwith a RedCap capability type). To illustrate, the UE may indicate thecapability type in a message associated with a random access channel(RACH) procedure, such as a message of type one (msg1) of a four-stepRACH procedure, a message of type three (msg3) of the four-step RACHprocedure, or a message of type A (msgA) of a two-step RACH procedure.The base station may include the frequency hopping indicator in amessage of type two (msg2) or message of type four (msg4) of thefour-step RACH procedure, a message scheduling the msg2 or msg4, amessage of type B (msgB) of a two-step RACH procedure, a messagescheduling the msgB, or a combination of a downlink channel and acontrol channel, as illustrative examples.

In an implicit technique, the UE may compare the first uplink BWPassociated with the UE to a threshold that is based on a systembandwidth associated with the base station. If the first uplink BWPexceeds the threshold, the UE may enable frequency hopping for an uplinkcontrol channel transmission. If the first uplink BWP fails to exceedthe threshold, the UE may disable frequency hopping for the uplinkcontrol channel transmission. In some examples, the thresholdcorresponds to the product of the system bandwidth and a particularvalue. The particular value may be specified by the base station or by awireless communication protocol, as illustrative examples.

By selectively disabling frequency hopping, performance of one or moreUEs may be improved. For example, by disabling frequency hopping in oneor more cases in which a first uplink BWP of a RedCap UE is included ina second uplink BWP of a non-RedCap UE, resource fragmentationassociated with the second uplink BWP may be reduced or avoided. As aresult, a number of packets used by the non-RedCap UE to transmit datamay be reduced, which may decrease latency in some circumstances.

To further illustrate, in various implementations, one or more aspectsdescribed herein may be used for wireless communication networks such ascode division multiple access (CDMA) networks, time division multipleaccess (TDMA) networks, frequency division multiple access (FDMA)networks, orthogonal FDMA (OFDMA) networks, single-carrier FDMA(SC-FDMA) networks, LTE networks, GSM networks, 5^(th) Generation (5G)or new radio (NR) networks (sometimes referred to as “5G NR” networks,systems, or devices), as well as other communications networks. Asdescribed herein, the terms “networks” and “systems” may be usedinterchangeably.

A CDMA network, for example, may implement a radio technology such asuniversal terrestrial radio access (UTRA), cdma2000, and the like. UTRAincludes wideband-CDMA (W-CDMA) and low chip rate (LCR). CDMA2000 coversIS-2000, IS-95, and IS-856 standards.

A TDMA network may, for example implement a radio technology such asGlobal System for Mobile Communication (GSM). The 3rd GenerationPartnership Project (3GPP) defines standards for the GSM EDGE (enhanceddata rates for GSM evolution) radio access network (RAN), also denotedas GERAN. GERAN is the radio component of GSM/EDGE, together with thenetwork that joins the base stations (for example, the Ater and Abisinterfaces) and the base station controllers (A interfaces, etc.). Theradio access network represents a component of a GSM network, throughwhich phone calls and packet data are routed from and to the publicswitched telephone network (PSTN) and Internet to and from subscriberhandsets, also known as user terminals or user equipments (UEs). Amobile phone operator's network may comprise one or more GERANs, whichmay be coupled with UTRANs in the case of a UMTS/GSM network.Additionally, an operator network may also include one or more LTEnetworks, or one or more other networks. The various different networktypes may use different radio access technologies (RATs) and RANs.

An OFDMA network may implement a radio technology such as evolved UTRA(E-UTRA), Institute of Electrical and Electronics Engineers (IEEE)802.11, IEEE 802.16, IEEE 802.20, flash-OFDM and the like. UTRA, E-UTRA,and GSM are part of universal mobile telecommunication system (UMTS). Inparticular, long term evolution (LTE) is a release of UMTS that usesE-UTRA. UTRA, E-UTRA, GSM, UMTS and LTE are described in documentsprovided from an organization named “3rd Generation Partnership Project”(3GPP), and cdma2000 is described in documents from an organizationnamed “3rd Generation Partnership Project 2” (3GPP2). These variousradio technologies and standards are known or are being developed. Forexample, the 3GPP is a collaboration between groups oftelecommunications associations that aims to define a globallyapplicable third generation (3G) mobile phone specification. 3GPP LTE isa 3GPP project which was aimed at improving UMTS mobile phone standard.The 3GPP may define specifications for the next generation of mobilenetworks, mobile systems, and mobile devices. The present disclosure maydescribe certain aspects with reference to LTE, 4G, or 5G NRtechnologies; however, the description is not intended to be limited toa specific technology or application, and one or more aspects describedwith reference to one technology may be understood to be applicable toanother technology. Additionally, one or more aspects of the presentdisclosure may be related to shared access to wireless spectrum betweennetworks using different radio access technologies or radio airinterfaces.

5G networks contemplate diverse deployments, diverse spectrum, anddiverse services and devices that may be implemented using an OFDM-basedunified, air interface. To achieve these goals, further enhancements toLTE and LTE-A are considered in addition to development of the new radiotechnology for 5G NR networks. The 5G NR will be capable of scaling toprovide coverage (1) to a massive Internet of things (IoT) with anultra-high density (e.g., ˜1 M nodes/km{circumflex over ( )}2),ultra-low complexity (e.g., ˜10 s of bits/sec), ultra-low energy (e.g.,˜10+ years of battery life), and deep coverage with the capability toreach challenging locations; (2) including mission-critical control withstrong security to safeguard sensitive personal, financial, orclassified information, ultra-high reliability (e.g., ˜0.99.9999%reliability), ultra-low latency (e.g., ˜1 millisecond (ms)), and userswith wide ranges of mobility or lack thereof; and (3) with enhancedmobile broadband including extreme high capacity (e.g., ˜10Tbps/km{circumflex over ( )}2), extreme data rates (e.g., multi-Gbpsrate, 100+ Mbps user experienced rates), and deep awareness withadvanced discovery and optimizations.

Devices, networks, and systems may be configured to communicate via oneor more portions of the electromagnetic spectrum. The electromagneticspectrum is often subdivided, based on frequency or wavelength, intovarious classes, bands, channels, etc. In 5G NR two initial operatingbands have been identified as frequency range designations FR1 (410MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). The frequencies between FR1and FR2 are often referred to as mid-band frequencies. Although aportion of FR1 is greater than 6 GHz, FR1 is often referred to(interchangeably) as a “sub-6 GHz” band in various documents andarticles. A similar nomenclature issue sometimes occurs with regard toFR2, which is often referred to (interchangeably) as a “millimeter wave”(mmWave) band in documents and articles, despite being different fromthe extremely high frequency (EHF) band (30 GHz-300 GHz) which isidentified by the International Telecommunications Union (ITU) as a“mmWave” band.

With the above aspects in mind, unless specifically stated otherwise, itshould be understood that the term “sub-6 GHz” or the like if usedherein may broadly represent frequencies that may be less than 6 GHz,may be within FR1, or may include mid-band frequencies. Further, unlessspecifically stated otherwise, it should be understood that the term“mmWave” or the like if used herein may broadly represent frequenciesthat may include mid-band frequencies, may be within FR2, or may bewithin the EHF band.

5G NR devices, networks, and systems may be implemented to use optimizedOFDM-based waveform features. These features may include scalablenumerology and transmission time intervals (TTIs); a common, flexibleframework to efficiently multiplex services and features with a dynamic,low-latency time division duplex (TDD) design or frequency divisionduplex (FDD) design; and advanced wireless technologies, such as massivemultiple input, multiple output (MIMO), robust mmWave transmissions,advanced channel coding, and device-centric mobility. Scalability of thenumerology in 5G NR, with scaling of subcarrier spacing, may efficientlyaddress operating diverse services across diverse spectrum and diversedeployments. For example, in various outdoor and macro coveragedeployments of less than 3 GHz FDD or TDD implementations, subcarrierspacing may occur with 15 kHz, for example over 1, 5, 10, 20 MHz, andthe like bandwidth. For other various outdoor and small cell coveragedeployments of TDD greater than 3 GHz, subcarrier spacing may occur with30 kHz over 80/100 MHz bandwidth. For other various indoor widebandimplementations, using a TDD over the unlicensed portion of the 5 GHzband, the subcarrier spacing may occur with 60 kHz over a 160 MHzbandwidth. Finally, for various deployments transmitting with mmWavecomponents at a TDD of 28 GHz, subcarrier spacing may occur with 120 kHzover a 500 MHz bandwidth.

The scalable numerology of 5G NR facilitates scalable TTI for diverselatency and quality of service (QoS) requirements. For example, shorterTTI may be used for low latency and high reliability, while longer TTImay be used for higher spectral efficiency. The efficient multiplexingof long and short TTIs to allow transmissions to start on symbolboundaries. 5G NR also contemplates a self-contained integrated subframedesign with uplink or downlink scheduling information, data, andacknowledgement in the same subframe. The self-contained integratedsubframe supports communications in unlicensed or contention-basedshared spectrum, adaptive uplink or downlink that may be flexiblyconfigured on a per-cell basis to dynamically switch between uplink anddownlink to meet the current traffic needs.

For clarity, certain aspects of the apparatus and techniques may bedescribed below with reference to example 5G NR implementations or in a5G-centric way, and 5G terminology may be used as illustrative examplesin portions of the description below; however, the description is notintended to be limited to 5G applications.

Moreover, it should be understood that, in operation, wirelesscommunication networks adapted according to the concepts herein mayoperate with any combination of licensed or unlicensed spectrumdepending on loading and availability. Accordingly, it will be apparentto a person having ordinary skill in the art that the systems, apparatusand methods described herein may be applied to other communicationssystems and applications than the particular examples provided.

While aspects and implementations are described in this application byillustration to some examples, those skilled in the art will understandthat additional implementations and use cases may come about in manydifferent arrangements and scenarios. Innovations described herein maybe implemented across many differing platform types, devices, systems,shapes, sizes, packaging arrangements. For example, implementations oruses may come about via integrated chip implementations or othernon-module-component based devices (e.g., end-user devices, vehicles,communication devices, computing devices, industrial equipment, retaildevices or purchasing devices, medical devices, AI-enabled devices,etc.). While some examples may or may not be specifically directed touse cases or applications, a wide assortment of applicability ofdescribed innovations may occur. Implementations may range fromchip-level or modular components to non-modular, non-chip-levelimplementations and further to aggregated, distributed, or originalequipment manufacturer (OEM) devices or systems incorporating one ormore described aspects. In some practical settings, devicesincorporating described aspects and features may also necessarilyinclude additional components and features for implementation andpractice of claimed and described aspects. It is intended thatinnovations described herein may be practiced in a wide variety ofimplementations, including both large devices or small devices,chip-level components, multi-component systems (e.g., radio frequency(RF)-chain, communication interface, processor), distributedarrangements, end-user devices, etc. of varying sizes, shapes, andconstitution.

FIG. 1 is a block diagram illustrating details of an example wirelesscommunication system according to one or more aspects. The wirelesscommunication system may include wireless network 100. Wireless network100 may, for example, include a 5G wireless network. As appreciated bythose skilled in the art, components appearing in FIG. 1 are likely tohave related counterparts in other network arrangements including, forexample, cellular-style network arrangements andnon-cellular-style-network arrangements (e.g., device to device or peerto peer or ad hoc network arrangements, etc.).

Wireless network 100 illustrated in FIG. 1 includes a number of basestations 105 and other network entities. A base station may be a stationthat communicates with the UEs and may also be referred to as an evolvednode B (eNB), a next generation eNB (gNB), an access point, and thelike. Each base station 105 may provide communication coverage for aparticular geographic area. In 3GPP, the term “cell” may refer to thisparticular geographic coverage area of a base station or a base stationsubsystem serving the coverage area, depending on the context in whichthe term is used. In implementations of wireless network 100 herein,base stations 105 may be associated with a same operator or differentoperators (e.g., wireless network 100 may include a plurality ofoperator wireless networks). Additionally, in implementations ofwireless network 100 herein, base station 105 may provide wirelesscommunications using one or more of the same frequencies (e.g., one ormore frequency bands in licensed spectrum, unlicensed spectrum, or acombination thereof) as a neighboring cell. In some examples, anindividual base station 105 or UE 115 may be operated by more than onenetwork operating entity. In some other examples, each base station 105and UE 115 may be operated by a single network operating entity.

A base station may provide communication coverage for a macro cell or asmall cell, such as a pico cell or a femto cell, or other types of cell.A macro cell generally covers a relatively large geographic area (e.g.,several kilometers in radius) and may allow unrestricted access by UEswith service subscriptions with the network provider. A small cell, suchas a pico cell, would generally cover a relatively smaller geographicarea and may allow unrestricted access by UEs with service subscriptionswith the network provider. A small cell, such as a femto cell, wouldalso generally cover a relatively small geographic area (e.g., a home)and, in addition to unrestricted access, may also provide restrictedaccess by UEs having an association with the femto cell (e.g., UEs in aclosed subscriber group (CSG), UEs for users in the home, and the like).A base station for a macro cell may be referred to as a macro basestation. A base station for a small cell may be referred to as a smallcell base station, a pico base station, a femto base station or a homebase station. In the example shown in FIG. 1 , base stations 105 d and105 e are regular macro base stations, while base stations 105 a-105 care macro base stations enabled with one of 3 dimension (3D), fulldimension (FD), or massive MIMO. Base stations 105 a-105 c takeadvantage of their higher dimension MIMO capabilities to exploit 3Dbeamforming in both elevation and azimuth beamforming to increasecoverage and capacity. Base station 105 f is a small cell base stationwhich may be a home node or portable access point. A base station maysupport one or multiple (e.g., two, three, four, and the like) cells.

Wireless network 100 may support synchronous or asynchronous operation.For synchronous operation, the base stations may have similar frametiming, and transmissions from different base stations may beapproximately aligned in time. For asynchronous operation, the basestations may have different frame timing, and transmissions fromdifferent base stations may not be aligned in time. In some scenarios,networks may be enabled or configured to handle dynamic switchingbetween synchronous or asynchronous operations.

UEs 115 are dispersed throughout the wireless network 100, and each UEmay be stationary or mobile. It should be appreciated that, although amobile apparatus is commonly referred to as a UE in standards andspecifications promulgated by the 3GPP, such apparatus may additionallyor otherwise be referred to by those skilled in the art as a mobilestation (MS), a subscriber station, a mobile unit, a subscriber unit, awireless unit, a remote unit, a mobile device, a wireless device, awireless communications device, a remote device, a mobile subscriberstation, an access terminal (AT), a mobile terminal, a wirelessterminal, a remote terminal, a handset, a terminal, a user agent, amobile client, a client, a gaming device, an augmented reality device,vehicular component, vehicular device, or vehicular module, or someother suitable terminology. Within the present document, a “mobile”apparatus or UE need not necessarily have a capability to move, and maybe stationary. Some non-limiting examples of a mobile apparatus, such asmay include implementations of one or more of UEs 115, include a mobile,a cellular (cell) phone, a smart phone, a session initiation protocol(SIP) phone, a wireless local loop (WLL) station, a laptop, a personalcomputer (PC), a notebook, a netbook, a smart book, a tablet, and apersonal digital assistant (PDA). A mobile apparatus may additionally bean IoT or “Internet of everything” (IoE) device such as an automotive orother transportation vehicle, a satellite radio, a global positioningsystem (GPS) device, a global navigation satellite system (GNSS) device,a logistics controller, a drone, a multi-copter, a quad-copter, a smartenergy or security device, a solar panel or solar array, municipallighting, water infrastructure, or other infrastructure; industrialautomation and enterprise devices; consumer and wearable devices, suchas eyewear, a wearable camera, a smart watch, a health or fitnesstracker, a mammal implantable device, gesture tracking device, medicaldevice, a digital audio player (e.g., MP3 player), a camera, a gameconsole, etc.; and digital home or smart home devices such as a homeaudio, video, and multimedia device, an appliance, a sensor, a vendingmachine, intelligent lighting, a home security system, a smart meter,etc. In one aspect, a UE may be a device that includes a UniversalIntegrated Circuit Card (UICC). In another aspect, a UE may be a devicethat does not include a UICC. In some aspects, UEs that do not includeUICCs may also be referred to as IoE devices. UEs 115 a-115 d of theimplementation illustrated in FIG. 1 are examples of mobile smartphone-type devices accessing wireless network 100 A UE may also be amachine specifically configured for connected communication, includingmachine type communication (MTC), enhanced MTC (eMTC), narrowband IoT(NB-IoT) and the like. UEs 115 e-115 k illustrated in FIG. 1 areexamples of various machines configured for communication that accesswireless network 100.

A mobile apparatus, such as UEs 115, may be able to communicate with anytype of the base stations, whether macro base stations, pico basestations, femto base stations, relays, and the like. In FIG. 1 , acommunication link (represented as a lightning bolt) indicates wirelesstransmissions between a UE and a serving base station, which is a basestation designated to serve the UE on the downlink or uplink, or desiredtransmission between base stations, and backhaul transmissions betweenbase stations. UEs may operate as base stations or other network nodesin some scenarios. Backhaul communication between base stations ofwireless network 100 may occur using wired or wireless communicationlinks.

In operation at wireless network 100, base stations 105 a-105 c serveUEs 115 a and 115 b using 3D beamforming and coordinated spatialtechniques, such as coordinated multipoint (CoMP) or multi-connectivity.Macro base station 105 d performs backhaul communications with basestations 105 a-105 c, as well as small cell, base station 105 f. Macrobase station 105 d also transmits multicast services which aresubscribed to and received by UEs 115 c and 115 d. Such multicastservices may include mobile television or stream video, or may includeother services for providing community information, such as weatheremergencies or alerts, such as Amber alerts or gray alerts.

Wireless network 100 of implementations supports mission criticalcommunications with ultra-reliable and redundant links for missioncritical devices, such as UE 115 e, which is a drone. Redundantcommunication links with UE 115 e include from macro base stations 105 dand 105 e, as well as small cell base station 105 f. Other machine typedevices, such as UE 115 f (thermometer), UE 115 g (smart meter), and UE115 h (wearable device) may communicate through wireless network 100either directly with base stations, such as small cell base station 105f, and macro base station 105 e, or in multi-hop configurations bycommunicating with another user device which relays its information tothe network, such as UE 115 f communicating temperature measurementinformation to the smart meter, UE 115 g, which is then reported to thenetwork through small cell base station 105 f. Wireless network 100 mayalso provide additional network efficiency through dynamic, low-latencyTDD communications or low-latency FDD communications, such as in avehicle-to-vehicle (V2V) mesh network between UEs 115 i-115 kcommunicating with macro base station 105 e.

In some aspects of the disclosure, a base station 105 of FIG. 1 maytransmit a frequency hopping (FH) indicator 150 to indicate to a UE 115whether frequency hopping is enabled or disabled for the UE 115. Toillustrate, in some examples, the base station 105 d may transmit the FHindicator 150 to the UE 115 c to indicate whether frequency hopping isenabled or disabled for the UE 115 c. The UE 115 c may enable or disablefrequency hopping based on the FH indicator 150, as described furtherbelow.

FIG. 2 is a block diagram illustrating examples of base station 105 andUE 115 according to one or more aspects. Base station 105 and UE 115 maybe any of the base stations and one of the UEs in FIG. 1 . For arestricted association scenario (as mentioned above), base station 105may be small cell base station 105 f in FIG. 1 , and UE 115 may be UE115 c or 115 d operating in a service area of base station 105 f, whichin order to access small cell base station 105 f, would be included in alist of accessible UEs for small cell base station 105 f. Base station105 may also be a base station of some other type. As shown in FIG. 2 ,base station 105 may be equipped with antennas 234 a through 234 t, andUE 115 may be equipped with antennas 252 a through 252 r forfacilitating wireless communications.

At base station 105, transmit processor 220 may receive data from datasource 212 and control information from processor 240, such as aprocessor. The control information may be for a physical broadcastchannel (PBCH), a physical control format indicator channel (PCFICH), aphysical hybrid-ARQ (automatic repeat request) indicator channel(PHICH), a physical downlink control channel (PDCCH), an enhancedphysical downlink control channel (EPDCCH), an MTC physical downlinkcontrol channel (MPDCCH), etc. The data may be for a physical downlinkshared channel (PDSCH), etc. Additionally, transmit processor 220 mayprocess (e.g., encode and symbol map) the data and control informationto obtain data symbols and control symbols, respectively. Transmitprocessor 220 may also generate reference symbols, e.g., for the primarysynchronization signal (PSS) and secondary synchronization signal (SSS),and cell-specific reference signal. Transmit (TX) MIMO processor 230 mayperform spatial processing (e.g., precoding) on the data symbols, thecontrol symbols, or the reference symbols, if applicable, and mayprovide output symbol streams to modulators (MODs) 232 a through 232 t.For example, spatial processing performed on the data symbols, thecontrol symbols, or the reference symbols may include precoding. Eachmodulator 232 may process a respective output symbol stream (e.g., forOFDM, etc.) to obtain an output sample stream. Each modulator 232 mayadditionally or alternatively process (e.g., convert to analog, amplify,filter, and upconvert) the output sample stream to obtain a downlinksignal. Downlink signals from modulators 232 a through 232 t may betransmitted via antennas 234 a through 234 t, respectively.

At UE 115, antennas 252 a through 252 r may receive the downlink signalsfrom base station 105 and may provide received signals to demodulators(DEMODs) 254 a through 254 r, respectively. Each demodulator 254 maycondition (e.g., filter, amplify, downconvert, and digitize) arespective received signal to obtain input samples. Each demodulator 254may further process the input samples (e.g., for OFDM, etc.) to obtainreceived symbols. MIMO detector 256 may obtain received symbols fromdemodulators 254 a through 254 r, perform MIMO detection on the receivedsymbols if applicable, and provide detected symbols. Receive processor258 may process (e.g., demodulate, deinterleave, and decode) thedetected symbols, provide decoded data for UE 115 to data sink 260, andprovide decoded control information to processor 280, such as aprocessor.

On the uplink, at UE 115, transmit processor 264 may receive and processdata (e.g., for a physical uplink shared channel (PUSCH)) from datasource 262 and control information (e.g., for a physical uplink controlchannel (PUCCH)) from processor 280. Additionally, transmit processor264 may also generate reference symbols for a reference signal. Thesymbols from transmit processor 264 may be precoded by TX MIMO processor266 if applicable, further processed by modulators 254 a through 254 r(e.g., for SC-FDM, etc.), and transmitted to base station 105. At basestation 105, the uplink signals from UE 115 may be received by antennas234, processed by demodulators 232, detected by MIMO detector 236 ifapplicable, and further processed by receive processor 238 to obtaindecoded data and control information sent by UE 115. Receive processor238 may provide the decoded data to data sink 239 and the decodedcontrol information to processor 240.

Processors 240 and 280 may direct the operation at base station 105 andUE 115, respectively. Processor 240 or other processors and modules atbase station 105 or processor 280 or other processors and modules at UE115 may perform or direct the execution of various processes for thetechniques described herein, such as to perform or direct the executionillustrated in FIGS. 8-11 , or other processes for the techniquesdescribed herein, such as transmission and reception of the FH indicator150. Memories 242 and 282 may store data and program codes for basestation 105 and UE 115, respectively. Scheduler 244 may schedule UEs fordata transmission on the downlink or the uplink.

In some cases, UE 115 and base station 105 may operate in a shared radiofrequency spectrum band, which may include licensed or unlicensed (e.g.,contention-based) frequency spectrum. In an unlicensed frequency portionof the shared radio frequency spectrum band, UEs 115 or base stations105 may traditionally perform a medium-sensing procedure to contend foraccess to the frequency spectrum. For example, UE 115 or base station105 may perform a listen-before-talk or listen-before-transmitting (LBT)procedure such as a clear channel assessment (CCA) prior tocommunicating in order to determine whether the shared channel isavailable. In some implementations, a CCA may include an energydetection procedure to determine whether there are any other activetransmissions. For example, a device may infer that a change in areceived signal strength indicator (RSSI) of a power meter indicatesthat a channel is occupied. Specifically, signal power that isconcentrated in a certain bandwidth and exceeds a predetermined noisefloor may indicate another wireless transmitter. A CCA also may includedetection of specific sequences that indicate use of the channel. Forexample, another device may transmit a specific preamble prior totransmitting a data sequence. In some cases, an LBT procedure mayinclude a wireless node adjusting its own backoff window based on theamount of energy detected on a channel or theacknowledge/negative-acknowledge (ACK/NACK) feedback for its owntransmitted packets as a proxy for collisions.

FIG. 3 is a block diagram illustrating an example of a wirelesscommunication system 300 according to some aspects of the disclosure.The wireless communication system 300 may include one or more basestations, such as the base station 105. The wireless communicationsystem 300 may further include one or more UEs, such as a UE 115 x, a UE115 y, and a UE 115 z. In some examples, the UEs 115 x-z correspond toUEs 115 illustrated in FIG. 1 .

The example of FIG. 3 illustrates that the base station 105 may includeone or more processors (such as the processor 240) and may include thememory 242. The base station 105 may further include a transmitter 306and a receiver 308. The processor 240 may be coupled to the memory 242,to the transmitter 306, and to the receiver 308. In some examples, thetransmitter 306 and the receiver 308 include one or more componentsdescribed with reference to FIG. 2 , such as one or more of themodulator/demodulators 232 a-t, the MIMO detector 236, the receiveprocessor 238, the transmit processor 220, or the TX MIMO processor 230.In some implementations, the transmitter 306 and the receiver 308 may beintegrated in one or more transceivers of the base station 105.

The transmitter 306 may be configured to transmit reference signals,synchronization signals, control information, and data to one or moreother devices, and the receiver 308 may be configured to receivereference signals, control information, and data from one or more otherdevices. For example, the transmitter 306 may be configured to transmitsignaling, control information, and data to the UEs 115 x-z, and thereceiver 308 may be configured to receive signaling, controlinformation, and data from the UEs 115 x-z.

Each UE 115 x-z may include one or more processors (such as theprocessor 280), a memory (such as the memory 282), a transmitter (suchas a transmitter 356), and a receiver (such as a receiver 358). Theprocessor 280 may be coupled to the memory 282, to the transmitter 356,and to the receiver 358. In some examples, the transmitter 356 and thereceiver 358 may include one or more components described with referenceto FIG. 2 , such as one or more of the modulator/demodulators 254 a-r,the MIMO detector 256, the receive processor 258, the transmit processor264, or the TX MIMO processor 266. In some implementations, thetransmitter 356 and the receiver 358 may be integrated in one or moretransceivers of the UE 115.

The transmitter 356 may be configured to transmit reference signals,synchronization signals, control information, and data to one or moreother devices, and the receiver 358 may be configured to receivereference signals, control information, and data from one or more otherdevices. For example, in some implementations, the transmitter 356 maybe configured to transmit signaling, control information, and data tothe base station 105, and the receiver 358 may be configured to receivesignaling, control information, and data from the base station 105.

In some implementations, one or more of the transmitter 306, thereceiver 308, the transmitter 356, or the receiver 358 may include anantenna array. The antenna array may include multiple antenna elementsthat perform wireless communications with other devices. In someimplementations, the antenna array may perform wireless communicationsusing different beams, also referred to as antenna beams. The beams mayinclude transmit beams and receive beams. To illustrate, the antennaarray may include multiple independent sets (or subsets) of antennaelements (or multiple individual antenna arrays), and each set ofantenna elements of the antenna array may be configured to communicateusing a different respective beam that may have a different respectivedirection than the other beams. For example, a first set of antennaelements of the antenna array may be configured to communicate via afirst beam having a first direction, and a second set of antennaelements of the antenna array may be configured to communicate via asecond beam having a second direction. In other implementations, theantenna array may be configured to communicate via more than two beams.In some implementations, one or more sets of antenna elements of theantenna array may be configured to concurrently generate multiple beams,for example using multiple RF chains. A set (or subset) of antennaelements may include multiple antenna elements, such as two antennaelements, four antenna elements, ten antenna elements, twenty antennaelements, or any other number of antenna elements greater than two.Although described as an antenna array, in other implementations, theantenna array may include or correspond to multiple antenna panels, andeach antenna panel may be configured to communicate using a differentrespective beam.

In some implementations, the wireless communication system 300 operatesin accordance with a 5G NR network. For example, the wirelesscommunication system 300 may include multiple 5G-capable UEs 115 andmultiple 5G-capable base stations 105, such as UEs and base stationsconfigured to operate in accordance with a 5G NR network protocol suchas that defined by the 3GPP.

In some examples, one or more UEs 115 may be associated with aparticular capability type. In some examples, the UEs 115 x and 115 zare associated with a first capability type, and the UE 115 y isassociated with a second capability type different than the firstcapability type. In some implementations, first capability type maycorrespond to a “reduced capability” (RedCap) capability type, and thesecond capability type may correspond to a non-RedCap capability type,such as an embedded mobile broadband (eMBB) capability type, anultra-reliable low-latency communication (URLLC) capability type, oranother capability type. In some examples, the UE 115 x and the UE 115 zmay correspond to wearable devices, medical monitoring devices, sensordevices, Internet-of-Things (IoT) devices, or smart city devices (suchas surveillance cameras), as illustrative examples.

To further illustrate, in some implementations, the UE 115 x, the UE 115y, and the UE 115 z may communicate with the base station 105 using afirst uplink bandwidth part (BWP) 362 (e.g., a default uplink BWP of theUE 115 x), a second uplink BWP 372, and a third uplink BWP 382,respectively. In some examples, the first uplink BWP 362 and the thirduplink BWP 382 include less bandwidth than the second uplink BWP 372(e.g., to reduce power consumption associated with the UE 115 x and theUE 115 z). Each of the uplink BWPs 362, 372, and 382 may correspond toan initial uplink BWP or an active uplink BWP. To illustrate, the firstuplink BWP 362 may correspond to an initial uplink BWP used by the UE115 x prior to establishing a radio resource control (RRC) connectionbetween the base station 105 and the UE 115 x. In some other examples,the first uplink BWP 362 may correspond to an active uplink BWP that isconfigured by the base station 105 after establishing the RRC connectionbetween the base station 105 and the UE 115 x.

During operation, the transmitter 356 may operate based on the firstuplink BWP 362. For example, the transmitter 356 may be configured totransmit, to the base station 105, an uplink control channeltransmission 330 that is within the first uplink BWP 362 (e.g., wherethe uplink control channel transmission 330 is transmitted usingfrequency resources that are included in the first uplink BWP 362). Theuplink control channel transmission 330 may indicate uplink controlinformation (UCI) 334 associated with the UE 115 x. In some examples,the uplink control channel transmission 330 corresponds to a physicaluplink control channel (PUCCH) transmission.

In some implementations, the transmitter 356 may be configured toperform the uplink control channel transmission 330 based on a FH mode360. During operation based on the FH mode 360, the transmitter 356 maychange (or “hop”) between transmitting using a first frequency subset364 of the first uplink BWP 362 and a second frequency subset 366 of thefirst uplink BWP 362. In some circumstances, performing the uplinkcontrol channel transmission 330 based on a FH mode 360 may beassociated with reduced performance of one or more other UEs 115, suchas resource fragmentation.

To illustrate, FIG. 4 is a diagram illustrating an example of a resourceallocation scheme 400 according to some aspects of the disclosure. Inthe example of the resource allocation scheme 400, the first uplink BWP362 is less than (e.g., includes a smaller frequency range than) thesecond uplink BWP 372. During operation of the transmitter 356 based onthe FH mode 360, the UE 115 y may experience resource fragmentation. Forexample, if the transmitter 356 uses the first frequency subset 364 andthe second frequency subset 366 during the FH mode 360, frequenciescorresponding to the first frequency subset 364 and the second frequencysubset 366 may be unavailable to (or may be unassigned to) the UE 115 y.As a result, resources of the second uplink BWP 372 may be separated (orfragmented) into three non-contiguous frequency ranges.

In some aspects of the disclosure, the base station 105 may transmit theFH indicator 150 to selectively enable or disable the FH mode 360.Disabling the FH mode 360 may reduce or avoid resource fragmentation ofthe second uplink BWP 372. For example, when the FH mode 360 isdisabled, the UE 115 x may perform the uplink control channeltransmission 330 based on one (but not both) of the first frequencysubset 364 or the second frequency subset 366, which may reduce or avoidfragmentation of the second uplink BWP 372.

To further illustrate, referring again to FIG. 3 , the base station 105may transmit one or more messages 320 to the UE 115 x including the FHindicator 150. In some examples, the UE 115 x transmits a message 310 tothe base station 105 indicating a capability type 314 of the UE 115 x,and the base station 105 transmits the FH indicator 150 to the UE 115 xbased on the capability type 314. In some examples, the capability type314 indicates that the UE 115 x corresponds to a RedCap UE. In suchexamples, the capability type 314 may correspond to a RedCap capabilitytype, which may be associated with a reduced uplink bandwidth ascompared to at least one other capability type, such as an eMBBcapability type or a URLLC capability type in some implementations.Alternatively or in addition, the capability type 314 may indicate oneor more other parameters, such as one or more of a bandwidth or a centerfrequency of the first uplink BWP 362, as an illustrative example.

In some examples, the message 310 corresponds to a message of type one(msg1) associated with a four-step random access channel (RACH)procedure 342 (e.g., a contention-based RACH procedure) that indicatesthe capability type 314. In some such examples, the one or more messages320 may include or correspond to one of a message of type four (msg4)associated with the four-step RACH procedure 342, a downlink controlchannel transmission scheduling the msg4, or a combination of a downlinkcontrol channel transmission and a downlink data channel transmission.In connection with the combination of the downlink control channeltransmission and the downlink data channel transmission, at least afirst bit of the FH indicator 150 is included in the downlink controlchannel transmission, and at least a second bit of the FH indicator 150is included in the downlink data channel transmission. In such examples,the UE 115 x may perform joint decoding or joint processing of thedownlink control channel transmission and the downlink data channeltransmission to identify the FH indicator 150, which may increasereliability of transmission of the FH indicator 150 in somecircumstances.

In some other examples, the message 310 corresponds to a message of typethree (msg3) associated with the four-step RACH procedure 342 and havingone of a demodulation reference signal (DMRS) configuration indicatingthe capability type 314, a payload indicating the capability type 314,or a scrambling identifier indicating the capability type 314. In somesuch examples, the one or more messages 320 may include or correspond toone of a message four (msg4) associated with the four-step RACHprocedure 342, a downlink control channel transmission scheduling themsg4, or a combination of a downlink control channel transmission and adownlink data channel transmission.

In some other examples, the message 310 corresponds to a message of typeA (msgA) associated with a two-step RACH procedure 344 (e.g., acontention-free RACH procedure) and having one of a preamble indicatingthe capability type 314, a DMRS configuration indicating the capabilitytype 314, a payload indicating the capability type 314, or a scramblingidentifier of the payload indicating the capability type 314. In somesuch examples, the one or more messages 320 may include or correspond toone of a message of type B (msgB) associated with the two-step RACHprocedure 344, a downlink control channel message scheduling the msgB,or a combination of a downlink control channel transmission and adownlink data channel transmission.

To further illustrate, in an example of the four-step RACH procedure342, the UE 115 x may transmit the msg1 to indicate a random accesspreamble selected by the UE 115 x, and the base station 105 may transmitthe msg2 to indicate a response to the random access preamble thatincludes an uplink resource allocation. The UE 115 x may transmit themsg3 to the base station 105 using the uplink resource allocation, andthe base station 105 may transmit a contention resolution message to theUE 115 x via the msg4. In an example of the two-step RACH procedure 344,the base station 105 may assign a random access preamble to the UE 115 xand may indicate the assigned random access preamble to the UE 115 x.The UE 115 x may transmit the assigned random access preamble to thebase station 105 via the msgA, and the base station 105 may transmit arandom access response to the msgA to the UE 115 x via the msgB.

In some other examples, the one or more messages 320 may include orcorrespond to another message that is transmitted irrespective of a RACHtype associated with the UE 115 x. For example, the one or more messages320 may include or correspond to a system information (SI) messageassociated with the base station 105. In some examples, the base station105 transmits the SI message using a broadcast technique, which mayenable reception of the SI message by multiple UEs (such as the UEs 115x-z).

The FH indicator 150 may include a bit 324 having a value indicatingwhether the FH mode 360 is enabled or disabled. To illustrate, the bit324 may indicate a first value, and the transmitter 356 may perform theuplink control channel transmission 330 using the FH mode 360 based onthe first value of the bit 324. In some other examples, the bit 324 mayindicate a second value different than the first value, and thetransmitter may disable the FH mode 360 for the uplink control channeltransmission 330 based on the second value of the bit 324. In suchexamples, the transmitter 356 may perform the uplink control channeltransmission 330 using one (but not both) of the first frequency subset364 or the second frequency subset 366. In some implementations, thefirst value corresponds to a logic zero value, and the second valuecorresponds to a logic one value. In some other implementations, thefirst value corresponds to a logic one value, and the second valuecorresponds to a logic zero value.

In some implementations, the FH indicator 150 may optionally include afirst group of one or more bits 326 indicating a resource set 346 withinthe first uplink BWP 362. For example, the memory 282 may store a tableof resource sets, and the first group of one or more bits 326 maycorrespond to an index to the table of resource sets. The processor 280may identify the resource set 346 based on the first group of one ormore bits 326, and the transmitter 356 may perform the uplink controlchannel transmission 330 based on the resource set 374. In someexamples, the first group of one or more bits 326 may indicate the firstfrequency subset 364, the second frequency subset 366, or otherfrequency resources included in the first uplink BWP 362.

In some examples, at least a subset of the resource set 346 is shared orpartially overlapping with at least one other resource set of at leastone other device having a same or different capability type as the UE115 x. For example, the resource set 346 may include at least one commonresource as a resource set 374 of the UE 115 y, and the UE 115 y mayhave a different capability type as the UE 115 x. As another example,the resource set 346 may include at least one common resource as aresource set 384 of the UE 115 z, and the UE 115 z may have a samecapability type as the UE 115 x. In some examples, the resource set 374may correspond to an initial uplink BWP or active uplink BWP of the UE115 y, and the resource set 384 may correspond to an initial uplink BWPor active uplink BWP of the UE 115 z.

In some other examples, the resource set 346 is separate from one ormore other resource sets of at least one other device having a same ordifferent capability type as the UE 115 x. For example, the resource set346 may be separate from (and may not include at least one commonresource as) the resource set 374 of the UE 115 y, and the UE 115 y mayhave a different capability type as the UE 115 x. As another example,the resource set 346 may be separate from the resource set 384 of the UE115 z, and the UE 115 z may have a same capability type as the UE 115 x.

Alternatively or in addition, the FH indicator 150 may optionallyinclude a second group of one or more bits 328 indicating a repetitionnumber 348, and the transmitter 356 may perform one or more repetitions332 of the uplink control channel transmission 330 based on therepetition number 348. In some examples, performing the one or morerepetitions 332 may increase reliability associated with the uplinkcontrol channel transmission 330. To illustrate, disabling the FH mode360 may reduce a frequency diversity gain associated with the uplinkcontrol channel transmission 330, and performing the one or morerepetitions 332 may compensate for the reduced frequency diversity gain(e.g., by increasing a time diversity gain associated with the uplinkcontrol channel transmission 330).

In some examples, the base station 105 transmits the one or moremessages 320 using a broadcast transmission technique. Depending on theparticular example, the base station 105 may transmit the one or moremessages 320 (e.g., using the broadcast transmission technique) prior toor after an initial access procedure by the UE 115 x. The initial accessprocedure may include establishing an RRC connection between the basestation 105 and the UE 115. In some other examples, the base station 105transmits the one or more messages 320 using a unicast transmissiontechnique. Depending on the particular example, the base station 105 maytransmit the one or more messages 320 using the unicast transmissiontechnique and using one of an RRC connection or medium access control(MAC) control element (MAC-CE) signaling.

Although some examples of the uplink control channel transmission 330may be described as a single signal or single transmission, in someother examples, the uplink control channel transmission 330 may includemultiple uplink signals within the first uplink BWP 362. In suchexamples, bits of the UCI 334 may be allocated (or “shared”) among themultiple uplink signals within the first uplink BWP 362. Further, the FHindicator 150 may be shared among the multiple uplink signals (e.g., byenabling or disabling the FH mode 360 for each of the multiple uplinksignals based on the value of the bit 324). In some examples, themultiple uplink signals include one or more of a physical uplink controlchannel (PUCCH) signal, a physical uplink shared channel (PUSCH) signal,a sounding reference signal (SRS), or a physical random access channel(PRACH) signal, as illustrative examples.

FIG. 5 is a diagram illustrating examples of the first uplink BWP 362,the second uplink BWP 372, and the third uplink BWP 382 according tosome aspects of the disclosure. FIG. 5 illustrates that the firstfrequency subset 364 of the first uplink BWP 362 may be aligned with afirst boundary 502 of the second uplink BWP 372 (e.g., a lowestfrequency included in the second uplink BWP 372).

Aligning the first frequency subset 364 and the first boundary 502 ofthe second uplink BWP 372 may reduce or avoid resource fragmentation ofthe second uplink BWP 372 during operation of the transmitter 356 basedon the FH mode 360. For example, if resources of the first frequencysubset 364 are unavailable to the UE 115 y during the uplink controlchannel transmission 330, then a contiguous group of resources 504 maybe available to the UE 115 y (e.g., instead of multiple non-contiguousgroups of resources that may result from resource fragmentation). Insome examples, by reducing or avoiding resource fragmentation may reducea number of packets transmitted by the UE 115 y (e.g., by enabling datato be transmitted in a single packet using the contiguous group ofresources 504 instead of using multiple packets using multiplenon-contiguous groups of resources). As a result, data throughput andperformance may be improved.

The example of FIG. 5 also illustrates that the first frequency subset364 may be aligned a third frequency subset 506 of the third uplink BWP382 associated with a third device (e.g., the UE 115 z). As a result,resource fragmentation to the second uplink BWP 372 due to transmissionsby the UE 115 z that use the third frequency subset 506 may be reducedor avoided.

FIG. 6 is a diagram illustrating additional examples of the first uplinkBWP 362, the second uplink BWP 372, and the third uplink BWP 382according to some aspects of the disclosure. FIG. 6 illustrates that asecond boundary 602 of the second uplink BWP 372 may be aligned with afourth frequency subset 606 of the third uplink BWP 382 associated witha third device (e.g., the UE 115 z). In some implementations, theexample of FIG. 6 may reduce interference between transmissions of theUE 115 x and the UE 115 y (due to use of different frequency subsets364, 606 for the transmissions) while also enabling a contiguous groupof resources 604 for the UE 115 y, thus reducing or avoiding resourcefragmentation to the UE 115 y.

Referring again to FIG. 3 , in some examples, the base station 105 setsthe FH indicator 150 based on a resource allocation 302. The resourceallocation 302 may track or indicate resources allocated to UEs of thewireless communication system 300, such as the UEs 115 x-z. As anillustrative example, if the first uplink BWP 362 is included in thesecond uplink BWP 372, the base station 105 may set the FH indicator 150to indicate disabling of the FH mode 360 and may optionally indicate useof resources of the second frequency subset 366 via the first group ofone or more bits 326. Alternatively or in addition, the base station 105may perform alignment of uplink BWPs based on the resource allocation302, such as by aligning the frequency subsets 364, 506 with the firstboundary 502, or by aligning the first frequency subset 364 with thefirst boundary 502 and aligning the fourth frequency subset 606 with thesecond boundary 602.

Although certain examples have been described with reference to anexplicit FH indication technique (such as using the bit 324), in someother examples, a UE 115 may determine whether FH is to be performed inaccordance with an implicit FH indication technique. An implicit FHindication technique may be used alternatively or in addition to anexplicit FH indication technique. For example, in some implementations,if the UE 115 x fails to receive an explicit indication of the FHindicator 150 from the base station 105, then the UE 115 x may determinewhether to enable or disable the FH mode 360 using an implicit FHindication technique. Examples of an implicit FH indication techniqueare described further with reference to FIG. 7 .

FIG. 7 is a block diagram illustrating another example of a wirelesscommunication system 700 according to some aspects of the disclosure.The wireless communication system 700 may include one or more basestations, such as the base station 105. The wireless communicationsystem 300 may further include one or more UEs, such as a UE 115 x, UE115 y, and a UE 115 z.

During operation, the base station 105 may transmit an indication of abandwidth 712 associated with the base station 105, such as a servingcell system bandwidth associated with the base station 105. In someexamples, the base station 105 may transmit a system information (SI)message 710 that includes the first indication of the bandwidth 712. Thebase station 105 may transmit the first indication of the bandwidth 712using a broadcast transmission technique.

One or more of the UEs 115 x-z may receive the first indication of thebandwidth 712 and may decode the first indication to identify thebandwidth 712. For example, the UE 115 x may receive the SI message 710and may decode the SI message 710 to identify the bandwidth 712.

The base station 105 may transmit a second indication of the firstuplink BWP 362 associated with the UE 115 x. In some examples, thesecond indication of the first uplink BWP 362 is included in the SImessage 710. In some such examples, the UE 115 x may decode the SImessage 710 to identify the first uplink BWP 362. In some otherexamples, the second indication of the first uplink BWP 362 is includedin an RRC configuration message 720 transmitted by the base station 105to the UE 115 x after establishing an RRC connection with the UE 115 x.In some such examples, the UE 115 x may decode the RRC configurationmessage 720 to identify the first uplink BWP 362. In some otherexamples, the second indication of the first uplink BWP 362 may beincluded in another message. Depending on the particular example, thefirst uplink BWP 362 may correspond to an initial BWP of the UE 115 x oran active BWP of the UE 115 x.

In some aspects of the disclosure, the UE 115 x may determine whetherthe first uplink BWP 362 exceeds a threshold 750. For example, theprocessor 280 may compare a first number of hertz (Hz) corresponding tothe first uplink BWP 362 to a second number of Hz corresponding to thethreshold 750 to determine whether the first uplink BWP 362 exceeds thethreshold 750. The threshold 750 may be based at least in part on thebandwidth 712.

The UE 115 x may enable (or disable) the FH mode 360 based on whetherthe first uplink BWP 362 exceeds (or fails to exceed) the threshold 750.To illustrate, in some examples, the processor 280 may determine thatthe first uplink BWP 362 exceeds the threshold 750. In such examples,the processor 280 may enable the FH mode 360, and the transmitter 356may perform the uplink control channel transmission 330 based on the FHmode 360. In some other examples, the processor 280 may determine thatthe first uplink BWP 362 fails to exceed the threshold 750. In suchexamples, the processor 280 may disable the FH mode 360, and thetransmitter 356 may perform the uplink control channel transmission 330without using the FH mode 360.

In some implementations, the threshold 750 is based on the bandwidth 712and a parameter 752 (e.g., a coefficient having a positive, ornon-negative, value). In some examples, the threshold 750 corresponds toa product of the bandwidth 712 and the parameter 752. In someimplementations, the parameter 752 is determined by a network device(e.g., the base station 105) and is indicated to the UE 115 x in systeminformation (e.g., via the SI message 710) or using RRC signaling (e.g.,via the RRC configuration message 720, or via another message). In someother examples, the base station 105 and the UE 115 x operate inaccordance with a wireless communication protocol (such as a 5G NRwireless communication protocol), and the wireless communicationprotocol specifies the parameter 752 based on one or more of thebandwidth 712, a maximum bandwidth associated with a device type (e.g.,a maximum bandwidth supported by the capability type 314 of FIG. 3 ), orthe first uplink BWP 362 configured by a network device based on thedevice type.

In some examples, one or more of the first frequency subset 364 or thesecond frequency subset 366 includes a first contiguous group of one ormore physical resource blocks (PRBs). As a non-limiting illustrativeexample, the first frequency subset 364 may include a contiguous groupof two contiguous PRBs, and the second frequency subset 366 may includea contiguous group of three contiguous PRBs.

In some examples, one or more of the first frequency subset 364 or thesecond frequency subset 366 spans either a second contiguous group ofsymbols within a slot or a third contiguous group of symbols withinmultiple slots. To illustrate, if one or more of the first frequencysubset 364 or the second frequency subset 366 spans a contiguous groupof symbols within a slot, the FH mode 360 may correspond to or may bereferred to as an intra-slot frequency hopping mode. If one or more ofthe first frequency subset 364 or the second frequency subset 366 spansa contiguous group of symbols within multiple slots, the FH mode 360 maycorrespond to or may be referred to as an inter-slot frequency hoppingmode.

In some examples, the first frequency subset 364 does not overlap thesecond frequency subset 366. For example, PRBs of the first frequencysubset 364 may not overlap (and may not be included in) PRBs of thesecond frequency subset 366 when the FH mode 360 is enabled for theuplink control channel transmission 330 in the first uplink BWP 362.

One or more examples described herein may improve performance of one ormore UEs, such as the UE 115 y. For example, by disabling the FH mode360 in one or more cases in which the first uplink BWP 362 is includedin the second uplink BWP 372, resource fragmentation associated with thesecond uplink BWP 372 may be reduced or avoided. As a result, a numberof packets used by the UE 115 y to transmit data to the base station 105may be reduced, which may decrease latency in some circumstances.

FIG. 8 is a flow chart illustrating an example of a method 800 ofwireless communication performed by a UE according to some aspects. Insome examples, the method 800 is performed by the UE 115.

The method 800 includes receiving, from a base station, one or moremessages including a frequency hopping indicator that specifies whethera frequency hopping mode is enabled or disabled for the UE, at 802. TheUE is associated with a first uplink BWP that includes a first frequencysubset and a second frequency subset. For example, the UE 115 x mayreceive the FH indicator 150 (e.g., using the receiver 358) indicatingwhether the FH mode 360 is enabled or disabled for the UE 115 x.

The method 800 further includes transmitting, to the base station, anuplink control channel transmission, at 804. The uplink control channeltransmission is transmitted using both the first frequency subset andthe second frequency subset based on the frequency hopping indicatorspecifying that the frequency hopping mode is enabled or using one ofthe first frequency subset or the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis disabled. For example, based on the FH indicator 150 indicating thatthe FH mode 360 is enabled, the UE 115 x may perform the uplink controlchannel transmission 330 (e.g., using the transmitter 356) using boththe first frequency subset 364 and the second frequency subset 366, suchas by changing (or “hopping”) between transmitting using the firstfrequency subset 364 and the second frequency subset 366. In some otherexamples, based on the FH indicator 150 indicating that the FH mode 360is disabled, the UE 115 x may perform the uplink control channeltransmission 330 (e.g., using the transmitter 356) using one (but notboth) of the first frequency subset 364 or the second frequency subset366.

FIG. 9 is a flow chart illustrating an example of a method 900 ofwireless communication performed by a base station according to someaspects. In some examples, the method 900 is performed by the basestation 105.

The method 900 includes transmitting, to a UE, one or more messagesincluding a frequency hopping indicator that specifies whether afrequency hopping mode is enabled or disabled for the UE, at 902. The UEis associated with a first uplink BWP that includes a first frequencysubset and a second frequency subset. For example, the base station 105may transmit the FH indicator 150 (e.g., using the transmitter 306)indicating whether the FH mode 360 is enabled or disabled for the UE 115x.

The method 900 further includes receiving, from the UE, an uplinkcontrol channel transmission, at 904. The uplink control channeltransmission is received using both the first frequency subset and thesecond frequency subset based on the frequency hopping indicatorspecifying that the frequency hopping mode is enabled or using one ofthe first frequency subset or the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis disabled. For example, based on the FH indicator 150 indicating thatthe FH mode 360 is enabled, the base station 105 may receive the uplinkcontrol channel transmission 330 (e.g., using the receiver 308) usingboth the first frequency subset 364 and the second frequency subset 366,such as by changing (or “hopping”) between receiving using the firstfrequency subset 364 and the second frequency subset 366. In some otherexamples, based on the FH indicator 150 indicating that the FH mode 360is disabled, the base station 105 may receive the uplink control channeltransmission 330 (e.g., using the receiver 308) using one (but not both)of the first frequency subset 364 or the second frequency subset 366.

FIG. 10 is a flow chart illustrating an example of a method 1000 ofwireless communication performed by a UE according to some aspects. Insome examples, the method 1000 is performed by the UE 115.

The method 1000 includes receiving, from a base station, a firstindication of a bandwidth associated with the base station, at 1002.

The method 1000 further includes receiving, from the base station, asecond indication of a first uplink BWP, at 1004. The first uplink BWPincludes a first frequency subset and that further includes a secondfrequency subset.

The method 1000 further includes transmitting, to the base station, anuplink signal transmission, at 1006. The uplink signal transmission istransmitted using both the first frequency subset and the secondfrequency subset based on the first uplink BWP exceeding a thresholdthat is based at least in part on the bandwidth associated with the basestation or using one of the first frequency subset or the secondfrequency subset based on the first uplink BWP failing to exceed thethreshold.

FIG. 11 is a flow chart illustrating an example of a method 1100 ofwireless communication performed by a base station according to someaspects. In some examples, the method 1100 is performed by the basestation 105.

The method 1100 includes transmitting, to a UE, a first indication of abandwidth associated with the base station, at 1102.

The method 1100 further includes transmitting, to the UE, a secondindication of a first uplink BWP, at 1104. The first uplink BWP includesa first frequency subset and that further includes a second frequencysubset.

The method 1100 further includes receiving, from the UE, an uplinksignal transmission, at 1106. The uplink signal transmission is receivedusing both the first frequency subset and the second frequency subsetbased on the first uplink BWP exceeding a threshold that is based atleast in part on the bandwidth associated with the base station or usingone of the first frequency subset or the second frequency subset basedon the first uplink BWP failing to exceed the threshold.

FIG. 12 is a block diagram illustrating an example of the UE 115according to some aspects of the disclosure. The UE 115 may includestructure, hardware, or components illustrated in FIG. 2 . For example,the UE 115 may include the processor 280, which may execute instructionsstored in the memory 282. Using the processor 280, the UE 115 maytransmit and receive signals via wireless radios 1201 a-r and antennas252 a-r. The wireless radios 1201 a-r may include one or more componentsor devices described herein, such as one or more of themodulator/demodulators 254 a-r, the MIMO detector 256, the receiveprocessor 258, the transmit processor 264, the TX MIMO processor 266,the transmitter 356, the receiver 358, or one or more other componentsor devices.

In some implementations, the memory 282 may store FH mode determinationinstructions 1202 executable by the processor 280 to identify whetherthe FH mode 360 is to be enabled or disabled (e.g., based on the valueof the bit 324 of the FH indicator 150). The memory 282 may store FHtransmission instructions 1204 executable by the processor 280 toperform the uplink control channel transmission 330 using the FH mode360 based on the FH indicator 150 specifying that the FH mode 360 is tobe enabled. The memory 282 may store non-FH transmission instructions1206 executable by the processor 280 to perform the uplink controlchannel transmission 330 without using the FH mode 360 based on the FHindicator 150 specifying that the FH mode 360 is to be disabled.

FIG. 13 is a block diagram illustrating an example of the base station105 according to some aspects of the disclosure. The base station 105may include structure, hardware, and components illustrated in FIG. 2 .For example, the base station 105 may include the processor 240, whichmay execute instructions stored in the memory 242. Under control of theprocessor 240, the base station 105 may transmit and receive signals viawireless radios 1301 a-t and antennas 234 a-t. The wireless radios 1301a-t may include one or more components or devices described herein, suchas one or more of the modulator/demodulators 232 a-t, the MIMO detector236, the receive processor 238, the transmit processor 220, the TX MIMOprocessor 230, the transmitter 306, the receiver 308, or one or moreother components or devices.

In some implementations, the memory 242 may store FH mode determinationinstructions 1302 executable by the processor 240 to select whether theFH mode 360 is to be enabled or disabled (e.g., by setting the value ofthe bit 324 of the FH indicator 150, which may be based on the resourceallocation 302). The memory 242 may store FH reception instructions 1304executable by the processor 240 to receive the uplink control channeltransmission 330 based on the FH mode 360 in response to the FHindicator 150 specifying that the FH mode 360 is to be enabled. Thememory 242 may store non-FH reception instructions 1306 executable bythe processor 240 to receive the uplink control channel transmission 330without using the FH mode 360 in response to the FH indicator 150specifying that the FH mode 360 is to be disabled.

To further illustrate some aspects of the disclosure, in a first aspect,an apparatus for wireless communication includes a transmitterconfigured to communicate with a base station based on a first uplinkbandwidth part (BWP) that includes a first frequency subset and thatfurther includes a second frequency subset. The apparatus furtherincludes a receiver configured to receive, from the base station, one ormore messages including a frequency hopping indicator that specifieswhether a frequency hopping mode is enabled or disabled. The transmitteris further configured to transmit, to the base station, an uplinkcontrol channel transmission using: both the first frequency subset andthe second frequency subset based on the frequency hopping indicatorspecifying that the frequency hopping mode is enabled; or one of thefirst frequency subset or the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis disabled.

In a second aspect, alone or in combination with the first aspect, thefirst uplink BWP corresponds to a default uplink BWP of the apparatus.

In a third aspect, alone or in combination with one or more of the firstaspect or the second aspect, the transmitter is further configured totransmit a message indicating a capability type of the apparatus, andwherein the frequency hopping indicator is based on the capability type.

In a fourth aspect, alone or in combination with one or more of thefirst aspect through the third aspect, the capability type correspondsto a reduced capability (RedCap) capability type that is associated witha reduced uplink bandwidth as compared to at least one other capabilitytype.

In a fifth aspect, alone or in combination with one or more of the firstaspect through the fourth aspect, the transmitter is further configuredto transmit a message of type one (msg1) associated with a four-steprandom access channel (RACH) procedure and that indicates a capabilitytype of the apparatus, the one or more messages are received based onthe capability type, and the one or more messages include one of amessage of type four (msg4) associated with the four-step RACHprocedure, a downlink control channel transmission scheduling the msg4,or a combination of a downlink control channel transmission and adownlink data channel transmission.

In a sixth aspect, alone or in combination with one or more of the firstaspect through the fifth aspect, the transmitter is further configuredto transmit a message of type three (msg3) associated with a four-steprandom access channel (RACH) procedure, one of a demodulation referencesignal (DMRS) configuration of the msg3, a payload of the msg3, or ascrambling identifier of the msg3 indicates a capability type of theapparatus, the one or more messages are received based on the capabilitytype, and the one or more messages include one of a message four (msg4)associated with the four-step RACH procedure, a downlink control channeltransmission scheduling the msg4, or a combination of a downlink controlchannel transmission and a downlink data channel transmission.

In a seventh aspect, alone or in combination with one or more of thefirst aspect through the sixth aspect, the transmitter is furtherconfigured to transmit a message of type A (msgA) associated with atwo-step random access channel (RACH) procedure, one of a preamble ofthe msgA, a demodulation reference signal (DMRS) configuration of themsgA, a payload of the msgA, or a scrambling identifier of the payloadindicates a capability type of the apparatus, and the one or moremessages are received based on the capability type.

In an eighth aspect, alone or in combination with one or more of thefirst aspect through the seventh aspect, the one or more messagesinclude one of a message of type B (msgB) associated with the two-stepRACH procedure, a downlink control channel message scheduling the msgB,or a combination of a downlink control channel transmission and adownlink data channel transmission.

In a ninth aspect, alone or in combination with one or more of the firstaspect through the eighth aspect, the one or more messages include asystem information (SI) message associated with the base station.

In a tenth aspect, alone or in combination with one or more of the firstaspect through the ninth aspect, the frequency hopping indicatorincludes a bit, and the transmitter is further configured to perform theuplink control channel transmission using the frequency hopping modebased on a first value of the bit.

In an eleventh aspect, alone or in combination with one or more of thefirst aspect through the tenth aspect, the transmitter is furtherconfigured to disable the frequency hopping mode for the uplink controlchannel transmission based on a second value of the bit.

In a twelfth aspect, alone or in combination with one or more of thefirst aspect through the eleventh aspect, the frequency hoppingindicator includes a first group of one or more bits indicating aresource set within the first uplink BWP, and the transmitter is furtherconfigured to perform the uplink control channel transmission based onthe resource set within the first uplink BWP.

In a thirteenth aspect, alone or in combination with one or more of thefirst aspect through the twelfth aspect, the frequency hopping indicatorincludes a second group of one or more bits indicating a repetitionnumber, and the transmitter is further configured to perform one or morerepetitions of the uplink control channel transmission based on therepetition number.

In a fourteenth aspect, alone or in combination with one or more of thefirst aspect through the thirteenth aspect, the one or more messages aretransmitted using a broadcast transmission technique prior to or afteran initial access procedure.

In a fifteenth aspect, alone or in combination with one or more of thefirst aspect through the fourteenth aspect, the one or more messages aretransmitted using a unicast transmission technique using one of a radioresource control (RRC) connection or medium access control (MAC) controlelement (MAC-CE) signaling.

In a sixteenth aspect, alone or in combination with one or more of thefirst aspect through the fifteenth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is enabled, and thetransmitter is further configured to perform the uplink control channeltransmission based on the frequency hopping mode and a resource set thatis shared or partially overlapping with at least one other resource setthat is used by at least one other device.

In a seventeenth aspect, alone or in combination with one or more of thefirst aspect through the sixteenth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is enabled, and thetransmitter is further configured to perform the uplink control channeltransmission based on the frequency hopping mode and a resource set thatis separate from one or more resource sets associated with at least oneother resource set that is used by at least one other device.

In an eighteenth aspect, alone or in combination with one or more of thefirst aspect through the seventeenth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is enabled andfurther indicates a resource set, and the transmitter is furtherconfigured to perform the uplink control channel transmission within thefirst uplink BWP based on the frequency hopping mode and the resourceset.

In a nineteenth aspect, alone or in combination with one or more of thefirst aspect through the eighteenth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled, and thetransmitter is further configured to perform the uplink control channeltransmission without the frequency hopping mode and based on at least asubset of a resource set that is shared or partially overlapping with atleast one other resource set that is used by at least one other device.

In a twentieth aspect, alone or in combination with one or more of thefirst aspect through the nineteenth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled, and thetransmitter is further configured to perform the uplink control channeltransmission without the frequency hopping mode and based on a resourceset that is separate from one or more resource sets associated with atleast one other resource set that is used by at least one other device.

In a twenty-first aspect, alone or in combination with one or more ofthe first aspect through the twentieth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled andfurther indicates a resource set, and the transmitter is furtherconfigured to perform the uplink control channel transmission withoutthe frequency hopping mode and based on the resource set.

In a twenty-second aspect, alone or in combination with one or more ofthe first aspect through the twenty-first aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled andfurther indicates a repetition number, and the transmitter is furtherconfigured to perform one or more repetitions of the uplink controlchannel transmission without the frequency hopping mode and based on therepetition number.

In a twenty-third aspect, alone or in combination with one or more ofthe first aspect through the twenty-second aspect, the first frequencysubset of the first uplink BWP is aligned with a first boundary of asecond uplink BWP that is associated with at least one other device toreduce or avoid resource fragmentation of the second uplink BWP duringoperation of the transmitter based on the frequency hopping mode.

In a twenty-fourth aspect, alone or in combination with one or more ofthe first aspect through the twenty-third aspect, the first frequencysubset is aligned with a third frequency subset of a third uplink BWPassociated with a third device.

In a twenty-fifth aspect, alone or in combination with one or more ofthe first aspect through the twenty-fourth aspect, a second boundary ofthe second uplink BWP is aligned with a fourth frequency subset of athird uplink BWP associated with a third device.

In a twenty-sixth aspect, alone or in combination with one or more ofthe first aspect through the twenty-fifth aspect, the frequency hoppingindicator for uplink control information is shared among multiple uplinksignals within the first uplink BWP, and the multiple uplink signalsinclude one or more of a physical uplink control channel (PUCCH) signal,a physical uplink shared channel (PUSCH) signal, a sounding referencesignal (SRS), or a physical random access channel (PRACH) signal.

In a twenty-seventh aspect, alone or in combination with one or more ofthe first aspect through the twenty-sixth aspect, an apparatus forwireless communication includes a receiver configured to receive, from abase station, a first indication of a bandwidth associated with the basestation and further configured to receive, from the base station, asecond indication of a first uplink bandwidth part (BWP). The firstuplink BWP includes a first frequency subset and that further includes asecond frequency subset. The apparatus further includes a transmitterconfigured to transmit, to the base station, an uplink signaltransmission using: both the first frequency subset and the secondfrequency subset based on the first uplink BWP exceeding a thresholdthat is based at least in part on the bandwidth associated with the basestation; or one of the first frequency subset or the second frequencysubset based on the first uplink BWP failing to exceed the threshold.

In a twenty-eighth aspect, alone or in combination with one or more ofthe first aspect through the twenty-seventh aspect, the uplink signaltransmission includes multiple uplink signals, and the multiple uplinksignals include one or more of a physical uplink control channel (PUCCH)signal, a physical uplink shared channel (PUSCH) signal, a soundingreference signal (SRS), or a physical random access channel (PRACH)signal.

In a twenty-ninth aspect, alone or in combination with one or more ofthe first aspect through the twenty-eighth aspect, the thresholdcorresponds to a product of the bandwidth associated with the basestation and a parameter having a non-negative value.

In a thirtieth aspect, alone or in combination with one or more of thefirst aspect through the twenty-ninth aspect, the parameter isdetermined by a network device and is indicated to the apparatus insystem information or using radio resource control (RRC) signaling.

In a thirty-first aspect, alone or in combination with one or more ofthe first aspect through the thirtieth aspect, the base station and theapparatus are configured to operate in accordance with a wirelesscommunication protocol, and the wireless communication protocolspecifies the parameter based on one or more of the bandwidth of thebase station, a maximum bandwidth associated with a device type, or thefirst uplink BWP configured by a network device based on the devicetype.

In a thirty-second aspect, alone or in combination with one or more ofthe first aspect through the thirty-first aspect, the receiver isfurther configured to receive, from the base station, a systeminformation (SI) message that includes the first indication and thesecond indication.

In a thirty-third aspect, alone or in combination with one or more ofthe first aspect through the thirty-second aspect, the receiver isfurther configured to receive, from the base station, a systeminformation (SI) message that includes the first indication and toreceive, from the base station, a radio resource control (RRC)configuration message that includes the second indication.

In a thirty-fourth aspect, alone or in combination with one or more ofthe first aspect through the thirty-fourth aspect, a method of wirelesscommunication performed by a user equipment (UE) includes receiving,from a base station, one or more messages including a frequency hoppingindicator that specifies whether a frequency hopping mode is enabled ordisabled for the UE. The UE is associated with a first uplink bandwidthpart (BWP) that includes a first frequency subset and a second frequencysubset. The method further includes transmitting, to the base station,an uplink control channel transmission using: both the first frequencysubset and the second frequency subset based on the frequency hoppingindicator specifying that the frequency hopping mode is enabled; or oneof the first frequency subset or the second frequency subset based onthe frequency hopping indicator specifying that the frequency hoppingmode is disabled.

In a thirty-fifth aspect, alone or in combination with one or more ofthe first aspect through the thirty-third aspect, one or more of thefirst frequency subset or the second frequency subset includes a firstcontiguous group of one or more physical resource blocks (PRBs), one ormore of the first frequency subset or the second frequency subset spanseither a second contiguous group of symbols within a slot or a thirdcontiguous group of symbols within multiple slots, and the firstfrequency subset does not overlap the second frequency subset when thefrequency hopping mode is enabled for the uplink control channeltransmission in the first uplink BWP.

In a thirty-sixth aspect, alone or in combination with one or more ofthe first aspect through the thirty-fifth aspect, the method includestransmitting a message of type one (msg1) associated with a four-steprandom access channel (RACH) procedure and that indicates a capabilitytype of the UE, and the one or more messages are received based on thecapability type.

In a thirty-seventh aspect, alone or in combination with one or more ofthe first aspect through the thirty-sixth aspect, the one or moremessages include one of a message of type four (msg4) associated withthe four-step RACH procedure, a downlink control channel transmissionscheduling the msg4, or a combination of a downlink control channeltransmission and a downlink data channel transmission.

In a thirty-eighth aspect, alone or in combination with one or more ofthe first aspect through the thirty-seventh aspect, the method includestransmitting a message of type three (msg3) associated with a four-steprandom access channel (RACH) procedure, one of a demodulation referencesignal (DMRS) configuration of the msg3, a payload of the msg3, or ascrambling identifier of the msg3 indicates a capability type of the UE,and the one or more messages are received based on the capability type.

In a thirty-ninth aspect, alone or in combination with one or more ofthe first aspect through the thirty-eighth aspect, the one or moremessages include one of a message four (msg4) associated with thefour-step RACH procedure, a downlink control channel transmissionscheduling the msg4, or a combination of a downlink control channeltransmission and a downlink data channel transmission.

In a fortieth aspect, alone or in combination with one or more of thefirst aspect through the thirty-ninth aspect, the method includestransmitting a message of type A (msgA) associated with a two-steprandom access channel (RACH) procedure, one of a preamble of the msgA, ademodulation reference signal (DMRS) configuration of the msgA, apayload of the msgA, or a scrambling identifier of the payload indicatesa capability type of the UE, and the one or more messages are receivedbased on the capability type.

In a forty-first aspect, alone or in combination with one or more of thefirst aspect through the fortieth aspect, the one or more messagesinclude one of a message of type B (msgB) associated with the two-stepRACH procedure, a downlink control channel message scheduling the msgB,or a combination of a downlink control channel transmission and adownlink data channel transmission.

In a forty-second aspect, alone or in combination with one or more ofthe first aspect through the forty-first aspect, the one or moremessages include a system information (SI) message associated with thebase station.

In a forty-third aspect, alone or in combination with one or more of thefirst aspect through the forty-second aspect, the frequency hoppingindicator includes a bit, and the uplink control channel transmission isperformed using the frequency hopping mode based on a first value of thebit.

In a forty-fourth aspect, alone or in combination with one or more ofthe first aspect through the forty-third aspect, the method includesdisabling the frequency hopping mode for the uplink control channeltransmission based on a second value of the bit.

In a forty-fifth aspect, alone or in combination with one or more of thefirst aspect through the forty-fourth aspect, the frequency hoppingindicator includes a first group of one or more bits indicating aresource set within the first uplink BWP, and the uplink control channeltransmission is performed based on the resource set within the firstuplink BWP.

In a forty-sixth aspect, alone or in combination with one or more of thefirst aspect through the forty-fifth aspect, the frequency hoppingindicator includes a second group of one or more bits indicating arepetition number, and the method includes performing one or morerepetitions of the uplink control channel transmission based on therepetition number.

In a forty-seventh aspect, alone or in combination with one or more ofthe first aspect through the forty-sixth aspect, the one or moremessages are transmitted using a broadcast transmission technique priorto or after an initial access procedure.

In a forty-eighth aspect, alone or in combination with one or more ofthe first aspect through the forty-seventh aspect, the one or moremessages are transmitted using a unicast transmission technique usingone of a radio resource control (RRC) connection or medium accesscontrol (MAC) control element (MAC-CE) signaling.

In a forty-ninth aspect, alone or in combination with one or more of thefirst aspect through the forty-eighth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is enabled, and theuplink control channel transmission is performed based on the frequencyhopping mode and a resource set that is shared or partially overlappingwith at least one other resource set that is used by at least one otherdevice.

In a fiftieth aspect, alone or in combination with one or more of thefirst aspect through the forty-ninth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is enabled, and theuplink control channel transmission is performed based on the frequencyhopping mode and a resource set that is separate from one or moreresource sets associated with at least one other resource set that isused by at least one other device.

In a fifty-first aspect, alone or in combination with one or more of thefirst aspect through the fiftieth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is enabled andfurther indicates a resource set, and the uplink control channeltransmission is performed based on the frequency hopping mode and theresource set.

In a fifty-second aspect, alone or in combination with one or more ofthe first aspect through the fifty-first aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled, and theuplink control channel transmission is performed without the frequencyhopping mode and based on at least a subset of a resource set that isshared or partially overlapping with at least one other resource setthat is used by at least one other device.

In a fifty-third aspect, alone or in combination with one or more of thefirst aspect through the fifty-second aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled, and theuplink control channel transmission is performed without the frequencyhopping mode and based on a resource set that is separate from one ormore resource sets associated with at least one other resource set thatis used by at least one other device.

In a fifty-fourth aspect, alone or in combination with one or more ofthe first aspect through the fifty-third aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled andfurther indicates a resource set, and the uplink control channeltransmission is performed without the frequency hopping mode and basedon the resource set.

In a fifty-fifth aspect, alone or in combination with one or more of thefirst aspect through the fifty-fourth aspect, the frequency hoppingindicator specifies that the frequency hopping mode is disabled andfurther indicates a repetition number, and the method includesperforming one or more repetitions of the uplink control channeltransmission without the frequency hopping mode and based on therepetition number.

In a fifty-sixth aspect, alone or in combination with one or more of thefirst aspect through the fifty-fifth aspect, the first frequency subsetof the first uplink BWP is aligned with a first boundary of a seconduplink BWP that is associated with at least one other device to reduceor avoid resource fragmentation of the second uplink BWP duringoperation based on the frequency hopping mode.

In a fifty-seventh aspect, alone or in combination with one or more ofthe first aspect through the fifty-sixth aspect, the first frequencysubset is aligned with a third frequency subset of a third uplink BWPassociated with a third device.

In a fifty-eighth aspect, alone or in combination with one or more ofthe first aspect through the fifty-seventh aspect, a second boundary ofthe second uplink BWP is aligned with a fourth frequency subset of athird uplink BWP associated with a third device.

In a fifty-ninth aspect, alone or in combination with one or more of thefirst aspect through the fifty-eighth aspect, the frequency hoppingindicator for uplink control information is shared among multiple uplinksignals within the first uplink BWP, and the multiple uplink signalsinclude one or more of a physical uplink control channel (PUCCH) signal,a physical uplink shared channel (PUSCH) signal, a sounding referencesignal (SRS), or a physical random access channel (PRACH) signal.

In a sixtieth aspect, alone or in combination with one or more of thefirst aspect through the fifty-ninth aspect, a method of wirelesscommunication performed by a user equipment (UE) includes receiving,from a base station, a first indication of a bandwidth associated withthe base station and further includes receiving, from the base station,a second indication of a first uplink bandwidth part (BWP). The firstuplink BWP includes a first frequency subset and that further includes asecond frequency subset. The method includes transmitting, to the basestation, an uplink signal transmission using: both the first frequencysubset and the second frequency subset based on the first uplink BWPexceeding a threshold that is based at least in part on the bandwidthassociated with the base station; or one of the first frequency subsetor the second frequency subset based on the first uplink BWP failing toexceed the threshold.

In a sixty-first aspect, alone or in combination with one or more of thefirst aspect through the sixtieth aspect, the uplink signal transmissionincludes multiple uplink signals, and the multiple uplink signalsinclude one or more of a physical uplink control channel (PUCCH) signal,a physical uplink shared channel (PUSCH) signal, a sounding referencesignal (SRS), or a physical random access channel (PRACH) signal.

In a sixty-second aspect, alone or in combination with one or more ofthe first aspect through the sixty-first aspect, the thresholdcorresponds to a product of the bandwidth associated with the basestation and a parameter having a non-negative value.

In a sixty-third aspect, alone or in combination with one or more of thefirst aspect through the sixty-second aspect, the parameter isdetermined by a network device and is indicated to the UE in systeminformation or using radio resource control (RRC) signaling.

In a sixty-fourth aspect, alone or in combination with one or more ofthe first aspect through the sixty-third aspect, the base station andthe UE are configured to operate in accordance with a wirelesscommunication protocol, and the wireless communication protocolspecifies the parameter based on one or more of the bandwidth of thebase station, a maximum bandwidth associated with a device type, or thefirst uplink BWP configured by a network device based on the devicetype.

In a sixty-fifth aspect, alone or in combination with one or more of thefirst aspect through the sixty-fourth aspect, the method includesreceiving, from the base station, a system information (SI) message thatincludes the first indication and the second indication.

In a sixty-sixth aspect, alone or in combination with one or more of thefirst aspect through the sixty-fifth aspect, the method includesreceiving, from the base station, a system information (SI) message thatincludes the first indication and receiving, from the base station, aradio resource control (RRC) configuration message that includes thesecond indication.

In a sixty-seventh aspect, alone or in combination with one or more ofthe first aspect through the sixty-sixth aspect, an apparatus forwireless communication includes a receiver configured to communicatewith a user equipment (UE) based on a first uplink bandwidth part (BWP)associated with the UE. The first uplink BWP includes a first frequencysubset and further includes a second frequency subset. The apparatusfurther includes a transmitter configured to transmit, to the UE, one ormore messages including a frequency hopping indicator that specifieswhether a frequency hopping mode is enabled or disabled. The receiver isfurther configured to receive, from the UE, an uplink control channeltransmission using: both the first frequency subset and the secondfrequency subset based on the frequency hopping indicator specifyingthat the frequency hopping mode is enabled; or one of the firstfrequency subset or the second frequency subset based on the frequencyhopping indicator specifying that the frequency hopping mode isdisabled.

In a sixty-eighth aspect, alone or in combination with one or more ofthe first aspect through the sixty-seventh aspect, an apparatus forwireless communication includes a transmitter configured to transmit, toa user equipment (UE), a first indication of a bandwidth associated witha base station and further configured to transmit, to the UE, a secondindication of a first uplink bandwidth part (BWP). The first uplink BWPincludes a first frequency subset and that further includes a secondfrequency subset. The apparatus further includes a receiver configuredto receive, from the UE, an uplink signal transmission using: both thefirst frequency subset and the second frequency subset based on thefirst uplink BWP exceeding a threshold that is based at least in part onthe bandwidth associated with the base station; or one of the firstfrequency subset or the second frequency subset based on the firstuplink BWP failing to exceed the threshold.

In a sixty-ninth aspect, alone or in combination with one or more of thefirst aspect through the sixty-eighth aspect, a method of wirelesscommunication performed by a base station includes transmitting, to auser equipment (UE), one or more messages including a frequency hoppingindicator that specifies whether a frequency hopping mode is enabled ordisabled for the UE. The UE is associated with a first uplink bandwidthpart (BWP) that includes a first frequency subset and a second frequencysubset. The method further includes receiving, from the UE, an uplinkcontrol channel transmission using: both the first frequency subset andthe second frequency subset based on the frequency hopping indicatorspecifying that the frequency hopping mode is enabled; or one of thefirst frequency subset or the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis disabled.

In a seventieth aspect, alone or in combination with one or more of thefirst aspect through the sixty-ninth aspect, a method of wirelesscommunication performed by a base station includes transmitting, to auser equipment (UE), a first indication of a bandwidth associated withthe base station and further includes transmitting, to the UE, a secondindication of a first uplink bandwidth part (BWP). The first uplink BWPincludes a first frequency subset and that further includes a secondfrequency subset. The method further includes receiving, from the UE, anuplink signal transmission using: both the first frequency subset andthe second frequency subset based on the first uplink BWP exceeding athreshold that is based at least in part on the bandwidth associatedwith the base station; or one of the first frequency subset or thesecond frequency subset based on the first uplink BWP failing to exceedthe threshold.

Those of skill in the art would understand that information and signalsmay be represented using any of a variety of different technologies andtechniques. For example, data, instructions, commands, information,signals, bits, symbols, and chips that may be referenced throughout theabove description may be represented by voltages, currents,electromagnetic waves, magnetic fields or particles, optical fields orparticles, or any combination thereof.

Components, the functional blocks, and the modules described herein mayinclude processors, electronics devices, hardware devices, electronicscomponents, logical circuits, memories, software codes, firmware codes,among other examples, or any combination thereof. Software shall beconstrued broadly to mean instructions, instruction sets, code, codesegments, program code, programs, subprograms, software modules,application, software applications, software packages, routines,subroutines, objects, executables, threads of execution, procedures,and/or functions, among other examples, whether referred to as software,firmware, middleware, microcode, hardware description language orotherwise. In addition, features discussed herein may be implemented viaspecialized processor circuitry, via executable instructions, orcombinations thereof.

The various illustrative logics, logical blocks, modules, circuits, andprocesses described herein may be implemented as electronic hardware,computer software, or combinations of both. Whether such functionalityis implemented in hardware or software may depend upon the particularapplication and design of the overall system.

A hardware and data processing apparatus used to implement the variousillustrative logics, logical blocks, modules and circuits described inconnection with the aspects disclosed herein may be implemented orperformed with a general purpose single- or multi-chip processor, adigital signal processor (DSP), an application specific integratedcircuit (ASIC), a field programmable gate array (FPGA) or otherprogrammable logic device, discrete gate or transistor logic, discretehardware components, or any combination thereof designed to perform thefunctions described herein. A general purpose processor may be amicroprocessor, or, any conventional processor, controller,microcontroller, or state machine. In some implementations, a processormay be implemented as a combination of computing devices, such as acombination of a DSP and a microprocessor, a plurality ofmicroprocessors, one or more microprocessors in conjunction with a DSPcore, or any other such configuration. In some implementations,particular processes and methods may be performed by circuitry that isspecific to a given function.

In one or more aspects, the functions described may be implemented inhardware, digital electronic circuitry, computer software, firmware,including the structures disclosed in this specification and theirstructural equivalents thereof, or in any combination thereof.Implementations of the subject matter described in this specificationalso may be implemented as one or more computer programs, that is one ormore modules of computer program instructions, encoded on a computerstorage media for execution by, or to control the operation of, dataprocessing apparatus.

If implemented in software, the functions may be stored on ortransmitted over as one or more instructions or code on acomputer-readable medium. The processes of a method or algorithmdisclosed herein may be implemented in a processor-executable softwaremodule which may reside on a computer-readable medium. Computer-readablemedia includes both computer storage media and communication mediaincluding any medium that may be enabled to transfer a computer programfrom one place to another. A storage media may be any available mediathat may be accessed by a computer. By way of example, and notlimitation, such computer-readable media may include random-accessmemory (RAM), read-only memory (ROM), electrically erasable programmableread-only memory (EEPROM), CD-ROM or other optical disk storage,magnetic disk storage or other magnetic storage devices, or any othermedium that may be used to store desired program code in the form ofinstructions or data structures and that may be accessed by a computer.Also, any connection may be properly termed a computer-readable medium.Disk and disc, as used herein, includes compact disc (CD), laser disc,optical disc, digital versatile disc (DVD), floppy disk, and Blu-raydisc where disks usually reproduce data magnetically, while discsreproduce data optically with lasers. Combinations of the above shouldalso be included within the scope of computer-readable media.Additionally, the operations of a method or algorithm may reside as oneor any combination or set of codes and instructions on a machinereadable medium and computer-readable medium, which may be incorporatedinto a computer program product.

Various modifications to the implementations described in thisdisclosure may be readily apparent to those skilled in the art, and thegeneric principles defined herein may be applied to some otherimplementations without departing from the spirit or scope of thisdisclosure. Thus, the claims are not intended to be limited to theimplementations shown herein, but are to be accorded the widest scopeconsistent with this disclosure, the principles and the novel featuresdisclosed herein.

Additionally, a person having ordinary skill in the art will readilyappreciate, the terms “upper” and “lower” are sometimes used for ease ofdescribing the figures, and indicate relative positions corresponding tothe orientation of the figure on a properly oriented page, and may notreflect the proper orientation of any device as implemented.

Certain features that are described in this specification in the contextof separate implementations also may be implemented in combination in asingle implementation. Conversely, various features that are describedin the context of a single implementation also may be implemented inmultiple implementations separately or in any suitable subcombination.Moreover, although features may be described above as acting in certaincombinations and even initially claimed as such, one or more featuresfrom a claimed combination may in some cases be excised from thecombination, and the claimed combination may be directed to asubcombination or variation of a subcombination.

Similarly, while operations are depicted in the drawings in a particularorder, this should not be understood as requiring that such operationsbe performed in the particular order shown or in sequential order, orthat all illustrated operations be performed, to achieve desirableresults. Further, the drawings may schematically depict one more exampleprocesses in the form of a flow diagram. However, other operations thatare not depicted may be incorporated in the example processes that areschematically illustrated. For example, one or more additionaloperations may be performed before, after, simultaneously, or betweenany of the illustrated operations. In certain circumstances,multitasking and parallel processing may be advantageous. Moreover, theseparation of various system components in the implementations describedabove should not be understood as requiring such separation in allimplementations, and it should be understood that the described programcomponents and systems may generally be integrated together in a singlesoftware product or packaged into multiple software products.Additionally, some other implementations are within the scope of thefollowing claims. In some cases, the actions recited in the claims maybe performed in a different order and still achieve desirable results.

As used herein, including in the claims, the term “or,” when used in alist of two or more items, means that any one of the listed items may beemployed by itself, or any combination of two or more of the listeditems may be employed. For example, if a composition is described ascontaining components A, B, or C, the composition may contain A alone; Balone; C alone; A and B in combination; A and C in combination; B and Cin combination; or A, B, and C in combination. Also, as used herein,including in the claims, “or” as used in a list of items prefaced by “atleast one of” indicates a disjunctive list such that, for example, alist of “at least one of A, B, or C” means A or B or C or AB or AC or BCor ABC (that is A and B and C) or any of these in any combinationthereof. The term “substantially” is defined as largely but notnecessarily wholly what is specified (and includes what is specified;for example, substantially 90 degrees includes 90 degrees andsubstantially parallel includes parallel), as understood by a person ofordinary skill in the art. In any disclosed implementations, the term“substantially” may be substituted with “within [a percentage] of” whatis specified, where the percentage includes 0.1, 1, 5, or 10 percent.

The previous description of the disclosure is provided to enable anyperson skilled in the art to make or use the disclosure. Variousmodifications to the disclosure will be readily apparent to thoseskilled in the art, and the generic principles defined herein may beapplied to other variations without departing from the spirit or scopeof the disclosure. Thus, the disclosure is not intended to be limited tothe examples and designs described herein but is to be accorded thewidest scope consistent with the principles and novel features disclosedherein.

What is claimed is:
 1. An apparatus for wireless communication, theapparatus comprising: a transmitter configured to: transmit a messageindicating a capability type; and communicate with a base station basedon a first uplink bandwidth part (BWP) that includes a first frequencysubset and that further includes a second frequency subset; and areceiver configured to receive, from the base station, one or moremessages including a frequency hopping indicator that specifies whethera frequency hopping mode is enabled or disabled, wherein the frequencyhopping indicator is based on the capability type, and wherein thetransmitter is further configured to transmit, to the base station, anuplink control channel transmission using: both the first frequencysubset and the second frequency subset based on the frequency hoppingindicator specifying that the frequency hopping mode is enabled; or oneof the first frequency subset or the second frequency subset based onthe frequency hopping indicator specifying that the frequency hoppingmode is disabled.
 2. The apparatus of claim 1, wherein the first uplinkBWP corresponds to a default uplink BWP of the apparatus.
 3. Theapparatus of claim 1, wherein the capability type corresponds to areduced capability (RedCap) capability type.
 4. The apparatus of claim3, wherein the RedCap capability type is associated with a reduceduplink bandwidth as compared to at least one other capability type. 5.The apparatus of claim 1, wherein the message corresponds to a messageof type one (msg1) associated with a four-step random access channel(RACH) procedure, wherein the receiver is further configured to receivethe one or more messages based on the capability type, and wherein theone or more messages include one of a message of type four (msg4)associated with the four-step RACH procedure, a downlink control channeltransmission scheduling the msg4, or a combination of a downlink controlchannel transmission and a downlink data channel transmission.
 6. Theapparatus of claim 1, wherein the transmitter is further configured totransmit a message of type three (msg3) associated with a four-steprandom access channel (RACH) procedure, wherein one of a demodulationreference signal (DMRS) configuration of the msg3, a payload of themsg3, or a scrambling identifier of the msg3 indicates the capabilitytype, wherein the receiver is further configured to receive the one ormore messages based on the capability type, and wherein the one or moremessages include one of a message of type four (msg4) associated withthe four-step RACH procedure, a downlink control channel transmissionscheduling the msg4, or a combination of a downlink control channeltransmission and a downlink data channel transmission.
 7. The apparatusof claim 1, wherein the transmitter is further configured to transmit amessage of type A (msgA) associated with a two-step random accesschannel (RACH) procedure, wherein one of a preamble of the msgA, ademodulation reference signal (DMRS) configuration of the msgA, apayload of the msgA, or a scrambling identifier of the payload indicatesthe capability type, and wherein the receiver is further configured toreceive the one or more messages based on the capability type.
 8. Theapparatus of claim 7, wherein the one or more messages include one of amessage of type B (msgB) associated with the two-step RACH procedure, adownlink control channel message scheduling the msgB, or a combinationof a downlink control channel transmission and a downlink data channeltransmission.
 9. The apparatus of claim 1, wherein the one or moremessages include a system information (SI) message associated with thebase station.
 10. The apparatus of claim 1, wherein the frequencyhopping indicator includes a bit, and wherein the transmitter is furtherconfigured to perform the uplink control channel transmission using thefrequency hopping mode based on a first value of the bit.
 11. Theapparatus of claim 10, wherein the transmitter is further configured todisable the frequency hopping mode for the uplink control channeltransmission based on a second value of the bit.
 12. The apparatus ofclaim 1, wherein the frequency hopping indicator includes a first groupof one or more bits indicating a resource set within the first uplinkBWP, and wherein the transmitter is further configured to perform theuplink control channel transmission based on the resource set within thefirst uplink BWP.
 13. The apparatus of claim 1, wherein the frequencyhopping indicator includes a second group of one or more bits indicatinga repetition number, and wherein the transmitter is further configuredto perform one or more repetitions of the uplink control channeltransmission based on the repetition number.
 14. A method of wirelesscommunication performed by a user equipment (UE), the method comprising:transmitting a message indicating a capability type associated with theUE; receiving, from a base station, one or more messages including afrequency hopping indicator that specifies whether a frequency hoppingmode is enabled or disabled for the UE, wherein the frequency hoppingindicator is based on the capability type, and wherein the UE isassociated with a first uplink bandwidth part (BWP) that includes afirst frequency subset and a second frequency subset; and transmitting,to the base station, an uplink control channel transmission using: boththe first frequency subset and the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis enabled; or one of the first frequency subset or the second frequencysubset based on the frequency hopping indicator specifying that thefrequency hopping mode is disabled.
 15. The method of claim 14, whereinthe one or more messages are transmitted using a broadcast transmissiontechnique prior to or after an initial access procedure.
 16. The methodof claim 14, wherein the one or more messages are transmitted using aunicast transmission technique using one of a radio resource control(RRC) connection or medium access control (MAC) control element (MAC-CE)signaling.
 17. The method of claim 14, wherein the frequency hoppingindicator specifies that the frequency hopping mode is enabled, andwherein the uplink control channel transmission is performed based onthe frequency hopping mode and a resource set that is shared orpartially overlapping with at least one other resource set that is usedby at least one other device.
 18. The method of claim 14, wherein thefrequency hopping indicator specifies that the frequency hopping mode isenabled, and wherein the uplink control channel transmission isperformed based on the frequency hopping mode and a resource set that isseparate from one or more resource sets associated with at least oneother resource set that is used by at least one other device.
 19. Themethod of claim 14, wherein the frequency hopping indicator specifiesthat the frequency hopping mode is enabled and further indicates aresource set, and wherein the uplink control channel transmission isperformed based on the frequency hopping mode and the resource set. 20.The method of claim 14, wherein the frequency hopping indicatorspecifies that the frequency hopping mode is disabled, and wherein theuplink control channel transmission is performed without the frequencyhopping mode and based on at least a subset of a resource set that isshared or partially overlapping with at least one other resource setthat is used by at least one other device.
 21. The method of claim 14,wherein the frequency hopping indicator specifies that the frequencyhopping mode is disabled, and wherein the uplink control channeltransmission is performed without the frequency hopping mode and basedon a resource set that is separate from one or more resource setsassociated with at least one other resource set that is used by at leastone other device.
 22. The method of claim 14, wherein the frequencyhopping indicator specifies that the frequency hopping mode is disabledand further indicates a resource set, and wherein the uplink controlchannel transmission is performed without the frequency hopping mode andbased on the resource set.
 23. The method of claim 14, wherein thefrequency hopping indicator specifies that the frequency hopping mode isdisabled and further indicates a repetition number, and furthercomprising performing one or more repetitions of the uplink controlchannel transmission without the frequency hopping mode and based on therepetition number.
 24. The method of claim 14, wherein the firstfrequency subset of the first uplink BWP is aligned with a firstboundary of a second uplink BWP that is associated with at least oneother device to reduce or avoid resource fragmentation of the seconduplink BWP during operation based on the frequency hopping mode.
 25. Anapparatus for wireless communication, the apparatus comprising: areceiver configured to: receive a message indicating a capability typeassociated with a user equipment (UE); and communicate with the UE basedon a first uplink bandwidth part (BWP) associated with the UE, whereinthe first uplink BWP includes a first frequency subset and furtherincludes a second frequency subset; and a transmitter configured totransmit, to the UE, one or more messages including a frequency hoppingindicator that specifies whether a frequency hopping mode is enabled ordisabled, wherein the frequency hopping indicator is based on thecapability type, and wherein the receiver is further configured toreceive, from the UE, an uplink control channel transmission using: boththe first frequency subset and the second frequency subset based on thefrequency hopping indicator specifying that the frequency hopping modeis enabled; or one of the first frequency subset or the second frequencysubset based on the frequency hopping indicator specifying that thefrequency hopping mode is disabled.
 26. The apparatus of claim 25,wherein the one or more messages include a system information (SI)message.
 27. The apparatus of claim 25, wherein the first uplink BWPcorresponds to a default uplink BWP of the UE.
 28. A method of wirelesscommunication performed by a base station, the method comprising:receiving, from a user equipment (UE), a message indicating a capabilitytype associated with the UE; transmitting, to the UE, one or moremessages including a frequency hopping indicator that specifies whethera frequency hopping mode is enabled or disabled for the UE, wherein thefrequency hopping indicator is based on the capability type, and whereinthe UE is associated with a first uplink bandwidth part (BWP) thatincludes a first frequency subset and a second frequency subset;receiving, from the UE, an uplink control channel transmission using:both the first frequency subset and the second frequency subset based onthe frequency hopping indicator specifying that the frequency hoppingmode is enabled; or one of the first frequency subset or the secondfrequency subset based on the frequency hopping indicator specifyingthat the frequency hopping mode is disabled.
 29. The method of claim 28,wherein the one or more messages include a system information (SI)message.
 30. The method of claim 28, wherein the first uplink BWPcorresponds to a default uplink BWP of the UE.